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Texas A&M University
1.
Lack, Jordan Thomas.
Planar Multicontact Locomotion Using Hybrid Zero Dynamics.
Degree: MS, Mechanical Engineering, 2013, Texas A&M University
URL: http://hdl.handle.net/1969.1/151833
► This thesis proposes a method for generating multi-contact, humanlike locomotion via a human-inspired optimization. The chief objective of this work is to offer an initial…
(more)
▼ This thesis proposes a method for generating multi-contact, humanlike
locomotion via a human-inspired optimization. The chief objective of this work is to offer an initial solution for obtaining multi-domain walking gaits containing domains with differing degrees of actuation. Motivated by the fact that
locomotion inherently includes impacts, a hybrid systems approach is used. Through Lagrangian mechanics, a dynamic model of the system is derived that governs the continuous dynamics, while the dynamics during the impacts are modeled assuming perfectly plastic impacts in which the ground imparts an impulsive force on the impacting link.
Using the dynamic model of the planar bipedal robot Amber 2, a seven link biped, a human-inspired optimization is presented which leverages the concept of zero dynamics, allowing for a low dimensional representation of the full order dynamics. Within the optimization, constraints are constructed based on the interaction be- tween the robot and the walking surface that ensure the optimized gait is physically realizable. Other constraints can be used to influence or “shape” the optimized walking gait such as kinematic and/or torque constraints. This optimized walking gait is then realized through the method of Input/Output Linearization. Finally, the utilization of online optimization in the form of a quadratic program increase the capabilities of simple Input/Output Linearization by introducing a notion of optimality as well as the ability to distribute torque as necessary to meet actuator requirements. Ultimately the combination of the flexability of the human-inspired optimization along with the controllers described result in not only multi-domain human-like walking, but even more importantly a tool for rapidly designing new walking gaits.
Advisors/Committee Members: Ames, Aaron D (advisor), Malak, Richard J (committee member), Hurtado, John E (committee member).
Subjects/Keywords: Robot; Locomotion
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APA (6th Edition):
Lack, J. T. (2013). Planar Multicontact Locomotion Using Hybrid Zero Dynamics. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/151833
Chicago Manual of Style (16th Edition):
Lack, Jordan Thomas. “Planar Multicontact Locomotion Using Hybrid Zero Dynamics.” 2013. Masters Thesis, Texas A&M University. Accessed January 26, 2021.
http://hdl.handle.net/1969.1/151833.
MLA Handbook (7th Edition):
Lack, Jordan Thomas. “Planar Multicontact Locomotion Using Hybrid Zero Dynamics.” 2013. Web. 26 Jan 2021.
Vancouver:
Lack JT. Planar Multicontact Locomotion Using Hybrid Zero Dynamics. [Internet] [Masters thesis]. Texas A&M University; 2013. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1969.1/151833.
Council of Science Editors:
Lack JT. Planar Multicontact Locomotion Using Hybrid Zero Dynamics. [Masters Thesis]. Texas A&M University; 2013. Available from: http://hdl.handle.net/1969.1/151833
2.
Pujala, Avinash.
The neural mechanisms underlying ventral and dorsal
root-evoked fictive locomotion in the neonatal mouse spinal
cord.
Degree: PhD, Neuroscience, 2013, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:320663/
► In this thesis, I made use of the isolated spinal cord preparation of the neonatal mice to investigate the neural mechanisms underlying fictive locomotion. Recently,…
(more)
▼ In this thesis, I made use of the isolated spinal cord
preparation of the neonatal mice to investigate the neural
mechanisms underlying fictive
locomotion. Recently, it has been
shown that stimulation of ventral roots (motoneuron axons) produces
fictive
locomotion. However, the spinal pathways and
pharmacological mechanisms underlying this phenomenon are unknown.
To further our understanding in this regard, I carried out
experiments to determine if ventral roots activated the locomotor
network in a manner similar to dorsal roots (primary afferents).
When I jointly stimulated dorsal and ventral roots with low
intensity stimuli incapable of eliciting fictive I was unable to
elicit fictive
locomotion. This suggested that ventral and dorsal
roots accessed the locomotor network via different sets of
first-order relay interneurons. This was more directly indicated by
recordings from two different relay interneuron populations known
to be contacted by afferents, and to be important for excitation of
the locomotor network. Unlike dorsal roots, ventral roots failed to
elicit monosynaptic responses within these neurons. This raised the
possibility that motor axons and sensory afferents might activate
distinct rhythmogenic networks. To test this idea, I used
interleaved dorsal and ventral root stimulus trains. Such
interleaved stimulus trains elicited robust locomotor-like
activity, suggesting that the two inputs were indeed activating the
same rhythmogenic elements. This was confirmed in a set of
experiments in which the stimulus train began with one root and was
then abruptly switched to the other root. In these experiments,
locomotor-like rhythmic activity continued without interruption,
despite the sudden switch in the stimulation from one root to
another. Collectively these results suggest that dorsal and ventral
root stimuli activate the same rhythmogenic network, but by
exciting different relay interneurons.
In another study, I investigated the pharmacological
mechanisms underlying electrically-elicited fictive
locomotion. I
found that fictive
locomotion elicited in this manner required
activation of a class of metabotropic glutamate receptors. By
selectively applying pharmacological agents to different parts of
the spinal cord, I was able to uncover evidence suggesting that
this class of metabotropic glutamate receptors played an important
role in the mechanisms of rhythmogenesis.
Advisors/Committee Members: O'Donovan, Michael (Director), Harris-Warrick, Ronald (Reader), McBain, Chris (Reader), Connors, Barry (Reader).
Subjects/Keywords: Fictive locomotion
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Chicago ·
MLA ·
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CSE |
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APA (6th Edition):
Pujala, A. (2013). The neural mechanisms underlying ventral and dorsal
root-evoked fictive locomotion in the neonatal mouse spinal
cord. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:320663/
Chicago Manual of Style (16th Edition):
Pujala, Avinash. “The neural mechanisms underlying ventral and dorsal
root-evoked fictive locomotion in the neonatal mouse spinal
cord.” 2013. Doctoral Dissertation, Brown University. Accessed January 26, 2021.
https://repository.library.brown.edu/studio/item/bdr:320663/.
MLA Handbook (7th Edition):
Pujala, Avinash. “The neural mechanisms underlying ventral and dorsal
root-evoked fictive locomotion in the neonatal mouse spinal
cord.” 2013. Web. 26 Jan 2021.
Vancouver:
Pujala A. The neural mechanisms underlying ventral and dorsal
root-evoked fictive locomotion in the neonatal mouse spinal
cord. [Internet] [Doctoral dissertation]. Brown University; 2013. [cited 2021 Jan 26].
Available from: https://repository.library.brown.edu/studio/item/bdr:320663/.
Council of Science Editors:
Pujala A. The neural mechanisms underlying ventral and dorsal
root-evoked fictive locomotion in the neonatal mouse spinal
cord. [Doctoral Dissertation]. Brown University; 2013. Available from: https://repository.library.brown.edu/studio/item/bdr:320663/

University of Waterloo
3.
Silva, Veronica Miyasike da.
Role of visual information during stair locomotion.
Degree: 2011, University of Waterloo
URL: http://hdl.handle.net/10012/5824
► Vision provides relevant information for safe locomotion in a variety of environments. During stair locomotion visual information may be important to detect step boundaries, transitions…
(more)
▼ Vision provides relevant information for safe locomotion in a variety of environments. During stair locomotion visual information may be important to detect step boundaries, transitions between ground level and stairs, handrail location, and potential hazards. Although there is a large body of literature on the role of vision during locomotion there is relatively little focused on how visual information is used during stair walking. Stairs are related to a significant number of accidents in daily living, and many of these accidents are attributed to visual factors. Therefore, understanding the role of vision during stair walking could provide insight into the mechanisms involved in stair accidents. The purpose of this thesis was to investigate the properties of the visual input used to guide locomotion on stairs. Study 1 was design to describe the gaze patterns during stair locomotion with a specific focus on transitions and handrails. Study 2 investigated the effects of performing concurrent visual and non-visual tasks on walking performance and associated gaze behaviour during stair ascent. Study 3 explored the role of peripheral visual information during visual and non-visual dual tasking. Finally, Study 4 investigated the effects of restricting the lower peripheral visual field to walk on stairs. Studies relied on the measurement in health young adults of: gaze behaviour using an eye tracker, temporal characteristics of walking using foot switches, and reaction time and errors of dual task performance. Overall, the findings of these studies highlight the importance of the lower visual field in guiding stair locomotion and the specific importance for stair transitions. Moreover, foveal vision is not specifically critical to detecting handrails or steps. Results are interpreted in the light of the specialization of the dorsal ventral stream in processing peripheral visual field information. Findings of this thesis provide basic understanding on the role of vision for stair navigation with potential applications in stair-related accident prevention programs and stair design.
Subjects/Keywords: vision; locomotion; stair locomotion; peripheral vision
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APA (6th Edition):
Silva, V. M. d. (2011). Role of visual information during stair locomotion. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/5824
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Silva, Veronica Miyasike da. “Role of visual information during stair locomotion.” 2011. Thesis, University of Waterloo. Accessed January 26, 2021.
http://hdl.handle.net/10012/5824.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Silva, Veronica Miyasike da. “Role of visual information during stair locomotion.” 2011. Web. 26 Jan 2021.
Vancouver:
Silva VMd. Role of visual information during stair locomotion. [Internet] [Thesis]. University of Waterloo; 2011. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10012/5824.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Silva VMd. Role of visual information during stair locomotion. [Thesis]. University of Waterloo; 2011. Available from: http://hdl.handle.net/10012/5824
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université Catholique de Louvain
4.
Dewolf, Arthur.
Neuromechanics of human walking and running on a slope.
Degree: 2019, Université Catholique de Louvain
URL: http://hdl.handle.net/2078.1/214187
► Neuromechanics is rather new approach that integrates biomechanics and motor control of movement. In this thesis, we analyse how the mechanics and the neuromuscular control…
(more)
▼ Neuromechanics is rather new approach that integrates biomechanics and motor control of movement. In this thesis, we analyse how the mechanics and the neuromuscular control of gait are modified during walking or running uphill or downhill, at different speeds. Therefore, we study the modifications of centre of mass trajectory to understand how the two basic mechanisms of human locomotion are modified. In a next step, we analyse the impact of these modifications on the coordination between lower limb-segments. Our results reveal that the kinematic pattern changes differently with speed on positive and negative slopes. Thereafter, we investigate the neuromuscular control of locomotion of slope by recording the activity of lower-limb muscles. Our results show that the modification of motor pool activity patterns across slopes also depends on speed. These changes in coordination might result from interplay between the activity of spinal central pattern generators (CPG) and sensory signals.
(MOTR - Sciences de la motricité) – UCL, 2019
Advisors/Committee Members: UCL - SSS/IONS/COSY - Systems & cognitive Neuroscience, UCL - Faculté des sciences de la motricité, Willems, Patrick, Schepens, Bénédicte, Thonnard, Jean-Louis, Ivanenko, Yuri, De clercq, Dirk, Jonkers, Ilse, Cheron, Guy.
Subjects/Keywords: Neuromechanics; Human locomotion
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Dewolf, A. (2019). Neuromechanics of human walking and running on a slope. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/214187
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Dewolf, Arthur. “Neuromechanics of human walking and running on a slope.” 2019. Thesis, Université Catholique de Louvain. Accessed January 26, 2021.
http://hdl.handle.net/2078.1/214187.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dewolf, Arthur. “Neuromechanics of human walking and running on a slope.” 2019. Web. 26 Jan 2021.
Vancouver:
Dewolf A. Neuromechanics of human walking and running on a slope. [Internet] [Thesis]. Université Catholique de Louvain; 2019. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/2078.1/214187.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dewolf A. Neuromechanics of human walking and running on a slope. [Thesis]. Université Catholique de Louvain; 2019. Available from: http://hdl.handle.net/2078.1/214187
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
5.
Liu, James.
EVALUATION OF HANDSBUSY VERSUS HANDSFREE VIRTUAL LOCOMOTION.
Degree: 2019, University of Nevada – Reno
URL: http://hdl.handle.net/11714/5706
► To navigate beyond the confines of often limited available positional tracking space, virtual reality (VR) users need to switch from natural walking input to a…
(more)
▼ To navigate beyond the confines of often limited available positional tracking space, virtual reality (VR) users need to switch from natural walking input to a controller-based
locomotion technique, such as teleportation or full
locomotion. Overloading the hands with navigation functionality has been considered detrimental to performance given that in many VR experiences, such as games, controllers are already used for tasks, such as shooting or interacting with objects. Existing studies have only evaluated virtual
locomotion techniques using a single navigation task. This paper reports on the performance, cognitive load demands, usability, presence and VR sickness occurrence of two hands-busy (full
locomotion/teleportation) and two hands-free (tilt/walking-in-place)
locomotion methods while participants (n=20) performed a bimanual shooting with navigation task. Though handsfree methods offer a higher presence, they don't outperform handsbusy
locomotion methods in terms of performance.
Advisors/Committee Members: Folmer, Eelke (advisor), Feil-Seifer, David (committee member), Macneilage, Paul (committee member).
Subjects/Keywords: Locomotion; Virtual Reality
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, J. (2019). EVALUATION OF HANDSBUSY VERSUS HANDSFREE VIRTUAL LOCOMOTION. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/5706
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Liu, James. “EVALUATION OF HANDSBUSY VERSUS HANDSFREE VIRTUAL LOCOMOTION.” 2019. Thesis, University of Nevada – Reno. Accessed January 26, 2021.
http://hdl.handle.net/11714/5706.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Liu, James. “EVALUATION OF HANDSBUSY VERSUS HANDSFREE VIRTUAL LOCOMOTION.” 2019. Web. 26 Jan 2021.
Vancouver:
Liu J. EVALUATION OF HANDSBUSY VERSUS HANDSFREE VIRTUAL LOCOMOTION. [Internet] [Thesis]. University of Nevada – Reno; 2019. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/11714/5706.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Liu J. EVALUATION OF HANDSBUSY VERSUS HANDSFREE VIRTUAL LOCOMOTION. [Thesis]. University of Nevada – Reno; 2019. Available from: http://hdl.handle.net/11714/5706
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

INP Toulouse
6.
Truong, Tan Viet Anh.
Un modèle de locomotion humaine unifiant comportements holonomes et nonholonomes : Unifying nonholonomic and holonomic behaviors in human locomotion.
Degree: Docteur es, Systèmes Automatiques, 2010, INP Toulouse
URL: http://www.theses.fr/2010INPT0026
► Notre motivation est de comprendre la locomotion humaine pour un meilleur contrôle des systèmes virtuels (robots et mannequins). La locomotion humaine a été étudiée depuis…
(more)
▼ Notre motivation est de comprendre la locomotion humaine pour un meilleur contrôle des systèmes virtuels (robots et mannequins). La locomotion humaine a été étudiée depuis longtemps dans des domaines différents. Nous considérons la locomotion comme le déplacement d’un repère attaché au corps humain (direction et orientation) au lieu de la trajectoire articulaire du corps complet. Notre approche est basée sur le fondement calculatoire de la locomotion humaine. Le but est de trouver un modèle qui explique la forme de la locomotion humaine dans l’espace. Pour ce faire, nous étudions tout d’abord le comportement des trajectoires au sol pendant la locomotion intentionnelle. Quand un humain marche, il met un pied devant l’autre et par conséquence, l’orientation du corps suit la direction tangente de la trajectoire. C’est ce qu’on appelle l’hypothèse de comportement nonholonome. Cependant, dans le cas d’un pas de côté, l’orientation du corps n’est plus semblable à la direction de trajectoire, et l’hypothèse n’est plus valable. Le comportement de la locomotion devient holonome. Le but de la thèse est de distinguer ces deux comportements et de les exploiter en neuroscience, robotique et animation graphique. La première partie de la thèse présente une étude qui permet de déterminer des configurations de comportement holonome par un protocole expérimental et par une fonction qui segmente les comportements nonholonomes et holonomes d’une trajectoire. Dans la deuxième partie, nous établissons un modèle unifiant comportements nonholonomes et holonomes. Ce modèle combine trois vitesses générant la locomotion humaine : tangentielle, angulaire et latérale. Par une approche de commande optimale inverse nous proposons une fonction multi-objectifs qui optimise des trajectoires calculées pour les rendre proches des trajectoires humaines naturelles. La dernière partie est l’application qui utilise les deux comportements pour synthétiser des locomotions humaines dans un environnement d’animation graphique. Chaque locomotion est caractérisée par trois vitesses et est donc considérée comme un point dans l’espace de commande 3D (de trois vitesses). Nous avons collecté une librairie qui contient des locomotions de vitesses différentes – des points dans l’espace 3D. Ces points sont structurés en un nuage de tétraèdres. Quand une vitesse désirée est donnée, elle est projetée dans l’espace 3D et on trouve le tétraèdre qui la contient. La nouvelle animation est interpolée par quatre locomotions correspondant aux quatre sommets du tétraèdre. On expose plusieurs scénarios d’animations sur un personnage virtuel.
Our motivation is to understand human locomotion to better control locomotion of virtual systems (robots and mannequins). Human locomotion has been studied so far in different disciplines. We consider locomotion as the level of a body frame (in direction and orientation) instead of the complexity of many kinematic joints systems as other approaches. Our approach concentrates on the computational foundation of human locomotion. The ultimate…
Advisors/Committee Members: Laumond, Jean-Paul (thesis director), Souères, Philippe (thesis director).
Subjects/Keywords: Locomotion humaine; Animation de locomotion; Mouvement holonome/nonholonome; Trajectoires de locomotion; Contrôleur de locomotion; Human locomotion; Locomotion animation; Lolonomic/nonholonomic motions; Locomotor trajectories; Locomotion controller
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APA ·
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APA (6th Edition):
Truong, T. V. A. (2010). Un modèle de locomotion humaine unifiant comportements holonomes et nonholonomes : Unifying nonholonomic and holonomic behaviors in human locomotion. (Doctoral Dissertation). INP Toulouse. Retrieved from http://www.theses.fr/2010INPT0026
Chicago Manual of Style (16th Edition):
Truong, Tan Viet Anh. “Un modèle de locomotion humaine unifiant comportements holonomes et nonholonomes : Unifying nonholonomic and holonomic behaviors in human locomotion.” 2010. Doctoral Dissertation, INP Toulouse. Accessed January 26, 2021.
http://www.theses.fr/2010INPT0026.
MLA Handbook (7th Edition):
Truong, Tan Viet Anh. “Un modèle de locomotion humaine unifiant comportements holonomes et nonholonomes : Unifying nonholonomic and holonomic behaviors in human locomotion.” 2010. Web. 26 Jan 2021.
Vancouver:
Truong TVA. Un modèle de locomotion humaine unifiant comportements holonomes et nonholonomes : Unifying nonholonomic and holonomic behaviors in human locomotion. [Internet] [Doctoral dissertation]. INP Toulouse; 2010. [cited 2021 Jan 26].
Available from: http://www.theses.fr/2010INPT0026.
Council of Science Editors:
Truong TVA. Un modèle de locomotion humaine unifiant comportements holonomes et nonholonomes : Unifying nonholonomic and holonomic behaviors in human locomotion. [Doctoral Dissertation]. INP Toulouse; 2010. Available from: http://www.theses.fr/2010INPT0026

University of British Columbia
7.
Frith, Harold Russ.
Energetics of fast-starts in northern pike, Esox lucius.
Degree: PhD, Zoology, 1990, University of British Columbia
URL: http://hdl.handle.net/2429/30834
► Fast-starts are high powered events of short duration, used by fish for prey capture and escape from predation. Here, the energetic cost of fast-starts in…
(more)
▼ Fast-starts are high powered events of short duration, used by fish for prey capture and escape from predation. Here, the energetic cost of fast-starts in escape and prey capture for a fast-start specialist, the northern pike, Esox lucius, are determined and physiological and behavioural constraints assessed. This is done by comparing costs with literature values for physiological limits set my muscle mechanics and biochemistry, and comparing costs with other components of the energy budget.
The combination of high speed film analysis (200-250Hz) and hydrodynamic models are used to determine the mechanical costs, hydrodynamic efficiencies and power output of fast-starts in prey capture (S-starts) and escape behaviour (C-starts). Excess post-exercise oxygen consumption (EPOC) is used to estimate the metabolic cost of fast-starts.
A comparison of model predictions with required (acceleration) force estimates shows results are within 22% and similar to previous findings at lower film speeds. The caudal region including the caudal, dorsal and anal fins contribute the most to thrust (>90%) and the dorsal and anal fins contribute 28%. Due to the necessity for deceleration of fin sections during each tail beat, kinematics are not always optimal as predicted by the Weihs model.
Mechanical power output, hydrodynamic efficiency and kinematic parameters (maximum velocities and maximum angle of attack of the caudal fin) are determined for fast-starts during prey capture and escape. Hydrodynamic efficiency averages 0.37
(range: 0.34 to 0.39) for C-starts and 0.27 (range: 0.16 to 0.37) for S-starts. The acceleration of added mass contributes the most to power output at 39%. Power output and efficiency for S-starts are more variable than C-starts and hydromechanical efficiency increases with number of tail beats for S-starts. Maximum muscle power output and maximum muscle stress during fast-starts in comparison to literature values for muscle function shows muscle power output during fast-starts is at its physiological limit but muscle stress is not.
Metabolic efficiency is higher at 0.094 for C-starts than S-starts at 0.047. However, muscle efficiency estimates are similar averaging 0.252 for both fast-start types.
Mean energetic cost of fast-starts is determined to be 26.5 J/kg for C-starts and 18.6 J/kg for S-starts. Based on the observation that pike can repeatedly fast-start up to 170 times before becoming exhausted and on estimates of available energy reserves from literature values for ATP and CrP concentrations in white muscle, the duration of fast-starts is concluded to not be limited by muscle physiology. Average power output is found to be similar for C and S-starts at 406 to 412 W/kg. Only hydrolysis of ATP and CrP can supply energy at this rate. Therefore, based on fish white muscle biochemistry and mechanics, power output during fast-starts appears to be limited by muscle physiology.
The cost of fast-starts represents 0.03 to 2% of maintenance costs for pike and therefore only 5 to 30 fast-starts per day would…
Subjects/Keywords: Pike – Locomotion; Esocidae – Locomotion; Fishes – Locomotion
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APA (6th Edition):
Frith, H. R. (1990). Energetics of fast-starts in northern pike, Esox lucius. (Doctoral Dissertation). University of British Columbia. Retrieved from http://hdl.handle.net/2429/30834
Chicago Manual of Style (16th Edition):
Frith, Harold Russ. “Energetics of fast-starts in northern pike, Esox lucius.” 1990. Doctoral Dissertation, University of British Columbia. Accessed January 26, 2021.
http://hdl.handle.net/2429/30834.
MLA Handbook (7th Edition):
Frith, Harold Russ. “Energetics of fast-starts in northern pike, Esox lucius.” 1990. Web. 26 Jan 2021.
Vancouver:
Frith HR. Energetics of fast-starts in northern pike, Esox lucius. [Internet] [Doctoral dissertation]. University of British Columbia; 1990. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/2429/30834.
Council of Science Editors:
Frith HR. Energetics of fast-starts in northern pike, Esox lucius. [Doctoral Dissertation]. University of British Columbia; 1990. Available from: http://hdl.handle.net/2429/30834

University of Alberta
8.
Montgomery, Emaline M.
The size dependence of sea star locomotion: Does bigger mean
faster?.
Degree: MS, Department of Biological Sciences, 2013, University of Alberta
URL: https://era.library.ualberta.ca/files/cz30pv11r
► As a general rule, larger-bodied animals within a species move at faster absolute speeds independently of locomotive mode. The relationship between body size and speed…
(more)
▼ As a general rule, larger-bodied animals within a
species move at faster absolute speeds independently of locomotive
mode. The relationship between body size and speed in sea stars is
decidedly less clear. One species of sea star follows the general
trend, three species show no correlation between body size and
speed, and one species exhibits the opposite relation. To address
these puzzling observations, I quantified body size, body shape,
and crawling speed in four previously unstudied species of
Northeast Pacific sea stars: the multi-armed stars Pycnopodia
helianthoides and Solaster stimpsoni, and the fixed-arm number
Dermasterias imbricata and Leptasterias hexactis. Only L. hexactis
exhibited statistically significant allometries in arm width, arm
length, and oral disk. When correlating measures body size with
crawling speeds, larger individuals within the multi-armed species
were faster - but larger individuals of fixed-arm species crawled
slower. Crawling speed differences between plastic and fine sand
differed among species.
Subjects/Keywords: locomotion; body size; echinodermata
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APA (6th Edition):
Montgomery, E. M. (2013). The size dependence of sea star locomotion: Does bigger mean
faster?. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/cz30pv11r
Chicago Manual of Style (16th Edition):
Montgomery, Emaline M. “The size dependence of sea star locomotion: Does bigger mean
faster?.” 2013. Masters Thesis, University of Alberta. Accessed January 26, 2021.
https://era.library.ualberta.ca/files/cz30pv11r.
MLA Handbook (7th Edition):
Montgomery, Emaline M. “The size dependence of sea star locomotion: Does bigger mean
faster?.” 2013. Web. 26 Jan 2021.
Vancouver:
Montgomery EM. The size dependence of sea star locomotion: Does bigger mean
faster?. [Internet] [Masters thesis]. University of Alberta; 2013. [cited 2021 Jan 26].
Available from: https://era.library.ualberta.ca/files/cz30pv11r.
Council of Science Editors:
Montgomery EM. The size dependence of sea star locomotion: Does bigger mean
faster?. [Masters Thesis]. University of Alberta; 2013. Available from: https://era.library.ualberta.ca/files/cz30pv11r

University of Alberta
9.
Olsen, Fraser G.
The V0 Interneurons: First-Order Interneurons of the
Locomotor CPG?.
Degree: MS, Centre for Neuroscience, 2011, University of Alberta
URL: https://era.library.ualberta.ca/files/tb09j709f
► The locomotor Central Pattern Generator (CPG) is a neuronal network capable of producing rhythmic locomotor output independent of sensory or descending input. Attempts to identify…
(more)
▼ The locomotor Central Pattern Generator (CPG) is a
neuronal network capable of producing rhythmic locomotor output
independent of sensory or descending input. Attempts to identify
component interneurons of the CPG have been aided by the discovery
of transcription factors that are expressed by discrete interneuron
populations during development. The V0 interneuron population is
defined by the expression of the transcription factor Dbx1. Herein
I test the hypothesis that V0 interneurons are first-order cells of
the locomotor CPG responsible for initiating rhythmic locomotor
activity. Anatomical tracing from brainstem sites known to be
responsible for the initiation of locomotion reveal that these
regions make monosynaptic connections onto V0 cells.
Immunohistochemistry demonstrates that V0 cells express 5-HT7 and
5-HT2A receptors, previously shown to be required for locomotor
initiation. Taken together these results support the hypothesis
that V0 interneurons are first-order interneurons of the locomotor
CPG responsible for initiating locomotion.
Subjects/Keywords: CPG; Locomotion; V0; Interneuron
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Olsen, F. G. (2011). The V0 Interneurons: First-Order Interneurons of the
Locomotor CPG?. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/tb09j709f
Chicago Manual of Style (16th Edition):
Olsen, Fraser G. “The V0 Interneurons: First-Order Interneurons of the
Locomotor CPG?.” 2011. Masters Thesis, University of Alberta. Accessed January 26, 2021.
https://era.library.ualberta.ca/files/tb09j709f.
MLA Handbook (7th Edition):
Olsen, Fraser G. “The V0 Interneurons: First-Order Interneurons of the
Locomotor CPG?.” 2011. Web. 26 Jan 2021.
Vancouver:
Olsen FG. The V0 Interneurons: First-Order Interneurons of the
Locomotor CPG?. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Jan 26].
Available from: https://era.library.ualberta.ca/files/tb09j709f.
Council of Science Editors:
Olsen FG. The V0 Interneurons: First-Order Interneurons of the
Locomotor CPG?. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/tb09j709f

Georgia Tech
10.
Schiebel, Perrin Elizabeth.
Limbless locomotion in complex terrestrial terrain.
Degree: PhD, Physics, 2019, Georgia Tech
URL: http://hdl.handle.net/1853/62635
► Limbless locomotion is used by animals ranging from micro to macroscopic to move in a wide variety of terrains. Snakes in particular use their elongate…
(more)
▼ Limbless
locomotion is used by animals ranging from micro to macroscopic to move in a wide variety of terrains. Snakes in particular use their elongate bodies to swim in water, climb trees, burrow into sand and soil, crawl across terrestrial terrain from jungle to desert, and glide through the air. The versatility of limbless
locomotion makes it suitable for situations that challenge legged or wheeled platforms, and for this reason snake-like robots are an attractive solution for engineering problems like movement in the confined, unstable rubble of a collapsed building. We studied the motion of live snakes as they moved through laboratory models of terrestrial terrain to search for principles governing both the relationship between waveform and performance as mediated by the terrain physics and the neuromechanical strategies for coordinating a many degrees-of-freedom body in complex surroundings. We found the desert-dwelling snake, Chionactis occipitalis, in homogeneous granular matter used a stereotyped waveform to move quickly across the surface. Resistive force theory calculation of sand-swimming performance revealed the self-deformation pattern of the snakes conferred maximum speed given a constraint on peak power. We explored the neuromechanics of these snakes by observing kinematics as they traversed a single row of posts. The interaction resulted in a mechanical diffraction pattern, reminiscent of the diffraction of subatomic particles. Comparison with a geometric model revealed this phenomenon was explained by an unaltered motor program supplemented by passive dynamics. We modeled multi-component terrestrial terrain as arrays of rigid posts of different post-to-post spacing affixed to a low-friction substrate and embedded in granular matter. The performance of the desert snake was a function of both substrate and lattice spacing, and comparison to a generalist snake species (Pantherophis guttatus) suggested that the ability to modulate the waveform in response to the environment was important in variable terrain.
Advisors/Committee Members: Goldman, Daniel I. (advisor), Hu, David (committee member), Sponberg, Simon (committee member), Curtis, Jennifer (committee member), Rocklin, D. Zeb (committee member).
Subjects/Keywords: Snake; Biomechanics; Neuromechanics; Terrestrial; Locomotion
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Schiebel, P. E. (2019). Limbless locomotion in complex terrestrial terrain. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/62635
Chicago Manual of Style (16th Edition):
Schiebel, Perrin Elizabeth. “Limbless locomotion in complex terrestrial terrain.” 2019. Doctoral Dissertation, Georgia Tech. Accessed January 26, 2021.
http://hdl.handle.net/1853/62635.
MLA Handbook (7th Edition):
Schiebel, Perrin Elizabeth. “Limbless locomotion in complex terrestrial terrain.” 2019. Web. 26 Jan 2021.
Vancouver:
Schiebel PE. Limbless locomotion in complex terrestrial terrain. [Internet] [Doctoral dissertation]. Georgia Tech; 2019. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1853/62635.
Council of Science Editors:
Schiebel PE. Limbless locomotion in complex terrestrial terrain. [Doctoral Dissertation]. Georgia Tech; 2019. Available from: http://hdl.handle.net/1853/62635

Vanderbilt University
11.
-1983-0349.
Evaluation of Locomotion Techniques in Room and Standing Scale Tracked Spaces.
Degree: PhD, Computer Science, 2020, Vanderbilt University
URL: http://hdl.handle.net/1803/10106
► Navigation is an everyday activity. It consists of knowing where you are, knowing where you want to go, and choosing some way to get there.…
(more)
▼ Navigation is an everyday activity. It consists of knowing where you are, knowing where you want to go, and choosing some way to get there. This way is referred to as
locomotion or a
locomotion method. As we locomote we must use the information we acquire from the environment to update our understanding of where we are in the environment. This process is called spatial updating. One common
locomotion method is walking, and a large body of literature has shown that we are able to more easily spatially update using information we take in from our environment when walking as compared to other
locomotion methods. The situation is similar for large immersive virtual environments. Unfortunately, there is no natural way of providing true walking for a large immersive virtual environment due to limitations of the virtual reality system itself, e.g., limitations of the space in which the system monitors a user’s movements and reflects them in the virtual world, called the tracked space. Rather, all methods of
locomotion have to be designed to fit the constraints of the system. This dissertation investigates the design and evaluation of
locomotion methods with the goal of understanding how to best support spatial awareness and spatial updating.
In five experiments, we focus on several factors that affect people’s ability to navigate through large virtual spaces with high spatial awareness. These factors are the choice of the
locomotion method, the ability of each individual to reason spatially, and the size of the tracked space supported by the virtual reality system. This dissertation presents four major findings.
Locomotion methods that provide physical translation better support spatial awareness and spatial updating.
Locomotion methods that simulate walking without providing physical translation support spatial awareness but make it difficult to demonstrate that awareness. An individual’s spatial ability interacts with the choice of
locomotion method in a manner that affects spatial. Finally, the appropriate
locomotion method is dependent on the available tracked space.
This work opens our understanding of how individual ability,
locomotion method, room size, and spatial awareness interact and affect each other. These results will be useful to designers of immersive virtual environments because they provide guidelines into the choice of
locomotion method and help them understand when additional spatial information will need to be provided to the user. Cognitive scientists may find our results useful because they explore what information is important in spatial reasoning for large virtual spaces. Future work can explore individualization of these
locomotion methods or how to combine multiple
locomotion methods to support the exploration of vast virtual worlds.
Advisors/Committee Members: Bodenheimer, Bobby (advisor).
Subjects/Keywords: Virtual Reality; Navigation; Locomotion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
-1983-0349. (2020). Evaluation of Locomotion Techniques in Room and Standing Scale Tracked Spaces. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/10106
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
-1983-0349. “Evaluation of Locomotion Techniques in Room and Standing Scale Tracked Spaces.” 2020. Doctoral Dissertation, Vanderbilt University. Accessed January 26, 2021.
http://hdl.handle.net/1803/10106.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
-1983-0349. “Evaluation of Locomotion Techniques in Room and Standing Scale Tracked Spaces.” 2020. Web. 26 Jan 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
-1983-0349. Evaluation of Locomotion Techniques in Room and Standing Scale Tracked Spaces. [Internet] [Doctoral dissertation]. Vanderbilt University; 2020. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1803/10106.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
-1983-0349. Evaluation of Locomotion Techniques in Room and Standing Scale Tracked Spaces. [Doctoral Dissertation]. Vanderbilt University; 2020. Available from: http://hdl.handle.net/1803/10106
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Texas A&M University
12.
Geetha Byju, Achu.
Alternative Measures of Toe Trajectory More Accurately Predict the Probability of Tripping than Minimum Toe Clearance.
Degree: MS, Biomedical Engineering, 2016, Texas A&M University
URL: http://hdl.handle.net/1969.1/158639
► Tripping is responsible for a large percentage of falls. Minimum toe clearance (MTC) during the swing phase of gait is commonly used to infer the…
(more)
▼ Tripping is responsible for a large percentage of falls. Minimum toe clearance (MTC) during the swing phase of gait is commonly used to infer the probability of tripping (POT). However, there is limited empirical evidence to support the relationship between these two variables, and other measures of toe trajectory may better predict POT than MTC. The goals of this study were to: 1) quantify the relationship between MTC and POT; and 2) explore alternative measures of toe trajectory that may predict POT more accurately than MTC.
POT was estimated by comparing the distribution of obstacles measured along heavily-used, paved sidewalks on a university campus to the toe trajectory of 40 young adults obtained while walking over an obstacle-free walkway in a research laboratory. POT exhibited a curvilinear relationship with MTC, and regression equations were established to predict POT from MTC. POT was more accurately predicted when using virtual points on the bottom of the anterior edge of the shoe to determine MTC, compared to using a physical marker located on top of the toes to determine MTC. POT was also more accurately predicted when using a new measure of toe trajectory (the area below 40mm and above the toe trajectory, normalized by the swing length), compared to just MTC. These are the first empirical results supporting a relationship between MTC and POT. These results may improve the ability to identify risk factors that influence POT, and aid in developing interventions to reduce POT.
Advisors/Committee Members: Madigan, Michael L (advisor), Hur, Pilwon (committee member), Jafari, Roozbeh (committee member).
Subjects/Keywords: biomechanics; trips; falls; gait; locomotion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Geetha Byju, A. (2016). Alternative Measures of Toe Trajectory More Accurately Predict the Probability of Tripping than Minimum Toe Clearance. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/158639
Chicago Manual of Style (16th Edition):
Geetha Byju, Achu. “Alternative Measures of Toe Trajectory More Accurately Predict the Probability of Tripping than Minimum Toe Clearance.” 2016. Masters Thesis, Texas A&M University. Accessed January 26, 2021.
http://hdl.handle.net/1969.1/158639.
MLA Handbook (7th Edition):
Geetha Byju, Achu. “Alternative Measures of Toe Trajectory More Accurately Predict the Probability of Tripping than Minimum Toe Clearance.” 2016. Web. 26 Jan 2021.
Vancouver:
Geetha Byju A. Alternative Measures of Toe Trajectory More Accurately Predict the Probability of Tripping than Minimum Toe Clearance. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1969.1/158639.
Council of Science Editors:
Geetha Byju A. Alternative Measures of Toe Trajectory More Accurately Predict the Probability of Tripping than Minimum Toe Clearance. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/158639

Université Laval
13.
Bagna, Maimouna.
Utilisation des réflexes cutanés pour étudier les
mécanismes de la plasticité adaptative locomotrice chez
l'homme.
Degree: 2014, Université Laval
URL: http://hdl.handle.net/20.500.11794/25041
► Dans cette thèse, nous nous intéressons à la plasticité des voies réflexes chez l'homme, induite par l’adaptation du contrôle moteur de la marche suite à…
(more)
▼ Dans cette thèse, nous nous intéressons à la
plasticité des voies réflexes chez l'homme, induite par
l’adaptation du contrôle moteur de la marche suite à une
perturbation mécanique. Nous formulons l’hypothèse que cette
plasticité, induite dans les voies réflexes, peut être étudiée dans
le but de mieux comprendre les mécanismes adaptatifs mis en place
par le système nerveux central. Cependant, l’étude des
modifications des voies neuronales empruntées par les réflexes
exige une analyse à la fois sensible et robuste et une description
détaillée de ces réponses, ce que ne permettent pas les approches
classiques jusqu’ici utilisées. Dans une première étude présentée
dans cette thèse, nous avons développé une méthode robuste de
traitement de signal pour identifier et extraire les réflexes
cutanés de manière précise et systématique. L’approche proposée est
basée sur une analyse unitaire des réflexes, qui implique la
détection et la caractérisation de chaque réponse individuelle à la
stimulation. Dans l’étude 2, nous avons montré que l’adaptation de
la marche à un champ de force impliquait des mécanismes de
plasticité pré-motoneurale. Pour approfondir l’étude de ces
mécanismes impliqués pendant l’adaptation du contrôle moteur à un
champ de force, dans la troisième étude, nous avons analysé les
changements réflexes obtenus lors de la stimulation de trois nerfs
différents convergeant sur le même pool de motoneurones (Tibial
Antérieur). Les résultats de cette étude ont montré que les
circuits neuronaux empruntés par chacun de ces trois nerfs se
réorganisent de façon spécifique et que cette spécificité est
potentiellement due à une réorganisation au niveau des
interneurones spinaux, suggérant ainsi que ces derniers
constitueraient un site important de la plasticité induite par
l’adaptation à un champ de force. Pour tendre vers un contexte réel
de réadaptation, nous avons également comparé, dans une 4eme étude,
les changements dans les réflexes cutanés après la vibration du
corps chez des personnes ayant subit une lésion médullaire et des
participants en santé. Les résultats de cette étude ont montré que
les changements observés dans les voies réflexes diffèrent chez ces
deux populations, mais semblent avoir dans les deux cas, un effet
fonctionnellement positif sur la marche.
Advisors/Committee Members: Bouyer, Laurent, Richards, Carol L..
Subjects/Keywords: Plasticité neuronale; Réflexes; Locomotion humaine
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bagna, M. (2014). Utilisation des réflexes cutanés pour étudier les
mécanismes de la plasticité adaptative locomotrice chez
l'homme. (Thesis). Université Laval. Retrieved from http://hdl.handle.net/20.500.11794/25041
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Bagna, Maimouna. “Utilisation des réflexes cutanés pour étudier les
mécanismes de la plasticité adaptative locomotrice chez
l'homme.” 2014. Thesis, Université Laval. Accessed January 26, 2021.
http://hdl.handle.net/20.500.11794/25041.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Bagna, Maimouna. “Utilisation des réflexes cutanés pour étudier les
mécanismes de la plasticité adaptative locomotrice chez
l'homme.” 2014. Web. 26 Jan 2021.
Vancouver:
Bagna M. Utilisation des réflexes cutanés pour étudier les
mécanismes de la plasticité adaptative locomotrice chez
l'homme. [Internet] [Thesis]. Université Laval; 2014. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/20.500.11794/25041.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Bagna M. Utilisation des réflexes cutanés pour étudier les
mécanismes de la plasticité adaptative locomotrice chez
l'homme. [Thesis]. Université Laval; 2014. Available from: http://hdl.handle.net/20.500.11794/25041
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Otago
14.
Chyou, Te-yuan.
Passive dynamics in animal locomotion
.
Degree: 2012, University of Otago
URL: http://hdl.handle.net/10523/2663
► For decades, biologists believed that animals walk because the brain calculates motion trajectories for their limbs. However, an alternative hypothesis on animal locomotion suggests the…
(more)
▼ For decades, biologists believed that animals walk because the brain calculates motion trajectories for their limbs. However, an alternative hypothesis on animal
locomotion suggests the opposite. The animal framework is built to walk “naturally” and the dynamics work without relying on controls. Instead, the walking gait is simply generated by the interaction of gravity and inertia, establishing a stable, naturally emerging limit-cycle known as passive dynamic walking. The feasibility of passive dynamic walking has been demonstrated for a biped system consisting of only a pair of legs. This thesis examines full-body passive dynamic walking models with simple and animal-like mechanical linkages that can generate walking gaits using only gravity that are able to recover from small perturbations without the need for controller input. The contribution of a torso to the stability and efficiency of passive biped walking is also addressed. When an upper-body is added, passive dynamic walking takes place on level ground but for energetic reasons, it is unstable. The second part of the thesis looks at how to stabilize the passive walking trajectory on level ground in a physically feasible and biologically relevant way. Findings suggest that the role of
locomotion control is to provide stability, rather than drive the limb onto a pre-calculated trajectory.
Advisors/Committee Members: Paulin, Mike (advisor).
Subjects/Keywords: passive dynamics;
animal locomotion;
biomechanics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chyou, T. (2012). Passive dynamics in animal locomotion
. (Doctoral Dissertation). University of Otago. Retrieved from http://hdl.handle.net/10523/2663
Chicago Manual of Style (16th Edition):
Chyou, Te-yuan. “Passive dynamics in animal locomotion
.” 2012. Doctoral Dissertation, University of Otago. Accessed January 26, 2021.
http://hdl.handle.net/10523/2663.
MLA Handbook (7th Edition):
Chyou, Te-yuan. “Passive dynamics in animal locomotion
.” 2012. Web. 26 Jan 2021.
Vancouver:
Chyou T. Passive dynamics in animal locomotion
. [Internet] [Doctoral dissertation]. University of Otago; 2012. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10523/2663.
Council of Science Editors:
Chyou T. Passive dynamics in animal locomotion
. [Doctoral Dissertation]. University of Otago; 2012. Available from: http://hdl.handle.net/10523/2663

University of Manitoba
15.
Ansari, Jahanzeb.
Do propriospinal neurons contribute to transmission of the locomotor command signal in adult mammals?.
Degree: Physiology and Pathophysiology, 2016, University of Manitoba
URL: http://hdl.handle.net/1993/31826
► Long projections from the brainstem to the lumbar cord activate locomotion. Using in vitro neonatal rats our laboratory showed that relay (propriospinal - PS) neurons…
(more)
▼ Long projections from the brainstem to the lumbar cord activate
locomotion. Using in vitro neonatal rats our laboratory showed that relay (propriospinal - PS) neurons also contribute to transmission of the locomotor signal. This thesis examines whether locomotor-related PS neurons exist in adult mammals, which has important clinical implications. The brainstem of adult decerebrate rats was stimulated to elicit stepping. The following manipulations were performed: 1) suppression of synaptic transmission to PS neurons, 2) lesioning of direct bulbospinal projections to lumbar segments, and 3) neurochemical excitation of PS neurons. In addition, in the absence of brainstem stimulation, the ability of neurochemically excited PS neurons to induce stepping was examined. Brainstem-evoked
locomotion was suppressed by synaptic blockade, enhanced by PS neuron excitation, persists after lesioning of long-direct projections, and hindlimb stepping was elicited by PS neuron excitation alone. The findings support the existence of a locomotor-related PS system in adult mammals.
Advisors/Committee Members: Schmidt, Brian (Physiology and Pathophysiology), Cowley, Kristine (Physiology and Pathophysiology).
Subjects/Keywords: Locomotion; Propriospinal; Spinal cord; Hemisection
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ansari, J. (2016). Do propriospinal neurons contribute to transmission of the locomotor command signal in adult mammals?. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/31826
Chicago Manual of Style (16th Edition):
Ansari, Jahanzeb. “Do propriospinal neurons contribute to transmission of the locomotor command signal in adult mammals?.” 2016. Masters Thesis, University of Manitoba. Accessed January 26, 2021.
http://hdl.handle.net/1993/31826.
MLA Handbook (7th Edition):
Ansari, Jahanzeb. “Do propriospinal neurons contribute to transmission of the locomotor command signal in adult mammals?.” 2016. Web. 26 Jan 2021.
Vancouver:
Ansari J. Do propriospinal neurons contribute to transmission of the locomotor command signal in adult mammals?. [Internet] [Masters thesis]. University of Manitoba; 2016. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1993/31826.
Council of Science Editors:
Ansari J. Do propriospinal neurons contribute to transmission of the locomotor command signal in adult mammals?. [Masters Thesis]. University of Manitoba; 2016. Available from: http://hdl.handle.net/1993/31826

Hong Kong University of Science and Technology
16.
Leung, Chun Yin.
Improve walking module with path planning for NAO robot.
Degree: 2013, Hong Kong University of Science and Technology
URL: http://repository.ust.hk/ir/Record/1783.1-62322
;
https://doi.org/10.14711/thesis-b1255635
;
http://repository.ust.hk/ir/bitstream/1783.1-62322/1/th_redirect.html
► Bipedal humanoid walking behavior is a very hot topic in robotics research. It is a challenging topic for humanoid robots as various factors ranging from…
(more)
▼ Bipedal humanoid walking behavior is a very hot topic in robotics research. It is a challenging topic for humanoid robots as various factors ranging from mechanic design of the robot to the system dynamics will affect how well the robot walks. In the other research, the mechanical structure of the robot can be easily changed in order to fit for the application and the research purpose. However, as the requirement in the standard platform league of Roboup, the NAO robot hardware cannot be modified and change. The improvement of the NAO robot walking can only be done by improving the embedded software. In this thesis research, the objective is to develop a walking module for the NAO Robot. The proposed walking module must be Omni-directional. Every walking motions are fluent and without stopping between each transactions. It must be stable and maintain balance when walking and walk faster than the original behavior. Even there exist external disturbances, such as pushes, the proposed walking module can still keep the NAO robot stable. The proposed algorithm of the walking module is using several of mathematics models like Dubins curve, Bezier curve and experiments in order to improve the walking efficiency. Also, forward and inverse kinematics has been adopted to improve the stability and precision of the robot moving. The testing result showed that there is over 100% improvement in the walking speed and greatly improve the stability of the robot to resist external disturbances.
Subjects/Keywords: Autonomous robots
; Locomotion
; Automatic control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Leung, C. Y. (2013). Improve walking module with path planning for NAO robot. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-62322 ; https://doi.org/10.14711/thesis-b1255635 ; http://repository.ust.hk/ir/bitstream/1783.1-62322/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Leung, Chun Yin. “Improve walking module with path planning for NAO robot.” 2013. Thesis, Hong Kong University of Science and Technology. Accessed January 26, 2021.
http://repository.ust.hk/ir/Record/1783.1-62322 ; https://doi.org/10.14711/thesis-b1255635 ; http://repository.ust.hk/ir/bitstream/1783.1-62322/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Leung, Chun Yin. “Improve walking module with path planning for NAO robot.” 2013. Web. 26 Jan 2021.
Vancouver:
Leung CY. Improve walking module with path planning for NAO robot. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2013. [cited 2021 Jan 26].
Available from: http://repository.ust.hk/ir/Record/1783.1-62322 ; https://doi.org/10.14711/thesis-b1255635 ; http://repository.ust.hk/ir/bitstream/1783.1-62322/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Leung CY. Improve walking module with path planning for NAO robot. [Thesis]. Hong Kong University of Science and Technology; 2013. Available from: http://repository.ust.hk/ir/Record/1783.1-62322 ; https://doi.org/10.14711/thesis-b1255635 ; http://repository.ust.hk/ir/bitstream/1783.1-62322/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Oregon
17.
Nakamura, Bryson.
Analysis of Unique Myoelectric Characteristics in Lower-Extremity Musculature During Locomotive State Transitions.
Degree: PhD, Department of Human Physiology, 2016, University of Oregon
URL: http://hdl.handle.net/1794/20544
► Lower-extremity amputees face numerous challenges when returning to daily activities. Amongst these challenges is the ability to safely and dynamically transition from one locomotor state…
(more)
▼ Lower-extremity amputees face numerous challenges when returning to daily activities. Amongst these challenges is the ability to safely and dynamically transition from one locomotor state to another. Switching between level-ground, ramp, and stair
locomotion poses an increased risk as lower-extremity functionality is compromised. Powered prosthetics have been proposed as a solution to this problem. Hypothetically, powered prosthetics would be able to return full functional to the amputated limb. The most common and successful source of information used in algorithms for lower-extremity prosthetics has been electromyography. However, in practice, amputees remain unable to easily actuate the mechanized joints of powered prostheses. Therefore, the current project aimed to identify myoelectric activation differences in lower-extremity musculature during the gait cycles preceding locomotor transition in able-bodied, trans-tibial, and trans-femoral subjects to assist efforts in developing robust classification algorithms for locomotor transitions. Analysis of electromyography was completed to determine if there were periods of activation where classification algorithms could utilize differences in myoelectric activation to appropriately control joint actuation in a subset of eight transitions that included level-ground
locomotion and switching to either ramp or stair
locomotion and vice versa. Ramp transitions were fundamentally similar to level-ground
locomotion and elicited no differences in myoelectric activation. Stair transitions were found to alter muscle activation patterns in able-body and trans-tibial subjects. Trans-femoral subjects differentiated from able-bodied and trans-tibial subjects due to increased recruitment pattern variability. These patterns are distinct and may suggest individual learning patterns within the trans-femoral amputee population. Further investigation of these patterns may be warranted. Findings within able-bodied and trans-tibial subjects suggest common transition based differences within each respective population. Trans-tibial classification algorithms may be developed to utilize this information, using schemes that are focused on important areas during the gait cycle.
Advisors/Committee Members: Hahn, Michael (advisor).
Subjects/Keywords: Amputee; Locomotion; Ramp; Stair; Transition
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Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Nakamura, B. (2016). Analysis of Unique Myoelectric Characteristics in Lower-Extremity Musculature During Locomotive State Transitions. (Doctoral Dissertation). University of Oregon. Retrieved from http://hdl.handle.net/1794/20544
Chicago Manual of Style (16th Edition):
Nakamura, Bryson. “Analysis of Unique Myoelectric Characteristics in Lower-Extremity Musculature During Locomotive State Transitions.” 2016. Doctoral Dissertation, University of Oregon. Accessed January 26, 2021.
http://hdl.handle.net/1794/20544.
MLA Handbook (7th Edition):
Nakamura, Bryson. “Analysis of Unique Myoelectric Characteristics in Lower-Extremity Musculature During Locomotive State Transitions.” 2016. Web. 26 Jan 2021.
Vancouver:
Nakamura B. Analysis of Unique Myoelectric Characteristics in Lower-Extremity Musculature During Locomotive State Transitions. [Internet] [Doctoral dissertation]. University of Oregon; 2016. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1794/20544.
Council of Science Editors:
Nakamura B. Analysis of Unique Myoelectric Characteristics in Lower-Extremity Musculature During Locomotive State Transitions. [Doctoral Dissertation]. University of Oregon; 2016. Available from: http://hdl.handle.net/1794/20544

University of Victoria
18.
Lewis, Allen.
Effect of stability context on cutaneous reflex modulation during treadmill walking.
Degree: School of Exercise Science, Physical and Health Education, 2011, University of Victoria
URL: http://hdl.handle.net/1828/3388
► Reflex control during walking has been shown to be specific to the behavioural context of a postural threat. Reflex modulation has been shown to be…
(more)
▼ Reflex control during walking has been shown to be specific to the behavioural context of a postural threat. Reflex modulation has been shown to be influenced by perturbations to the trunk, as well as by changes to arm activity that further affected the level of postural threat. The magnitudes of EMG responses in limbs and trunk to mechanical trip perturbations were differentially modulated depending on whether or not an earth- referenced railing was held. To further understand the neural control of limb and trunk muscles during walking contexts where changes to postural stability are solely linked to arm activity, we created 3 treadmill walking tasks each with the arms engaged differently to induce three levels of postural stability. Neurologically-intact participants walked on a treadmill using normal arm swing (NORMAL), holding a wheeled walker (WALKER), or holding the handrails (HANDRAIL). Subjects ranked the tasks according to degree of perceived challenge to stability; WALKER was ranked most challenging, followed by NORMAL and then HANDRAIL. Cutaneous reflexes were evoked via constant current stimulation (5 x 1.0 ms pulses at 300 Hz) of Superficial Peroneal (SP) nerve at the foot and Superficial Radial (SR) nerve at the wrist in separate trials during each walking task. EMG was recorded ipsilateral to nerve stimulation from arm and leg muscles and bilaterally from trunk muscles. Off-line analysis was conducted on eight phases of the step cycle after phase-averaging, contingent upon the timing of stimulation in the step cycle. The number of differences in bEMG and reflexes between tasks was graded with the proximity to the source of instability at the arms, progressively increasing from the legs to the arms. The gradient in bEMG differences suggests that the mechanical constraints of each task required different levels of muscle activation that was greatest for the arms, less for the trunk and least for the legs. The similar gradient seen for reflexes suggests functionally relevant changes in neural control of arm and trunk muscles in order to maintain postural stability during in each task. However, overall there were significantly fewer differences in reflexes between tasks compared to bEMG. We suggest that the mechanical constraints of the tasks yielded more significant changes in the muscle activation while requiring far fewer task-specific changes in reflex control suggesting a conservation of some elements of the neural control mechanisms across tasks.
Advisors/Committee Members: Zehr, E. Paul (supervisor), Hundza, Sandra R. (supervisor).
Subjects/Keywords: Human locomotion; reflexes; modulation
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Lewis, A. (2011). Effect of stability context on cutaneous reflex modulation during treadmill walking. (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/3388
Chicago Manual of Style (16th Edition):
Lewis, Allen. “Effect of stability context on cutaneous reflex modulation during treadmill walking.” 2011. Masters Thesis, University of Victoria. Accessed January 26, 2021.
http://hdl.handle.net/1828/3388.
MLA Handbook (7th Edition):
Lewis, Allen. “Effect of stability context on cutaneous reflex modulation during treadmill walking.” 2011. Web. 26 Jan 2021.
Vancouver:
Lewis A. Effect of stability context on cutaneous reflex modulation during treadmill walking. [Internet] [Masters thesis]. University of Victoria; 2011. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/1828/3388.
Council of Science Editors:
Lewis A. Effect of stability context on cutaneous reflex modulation during treadmill walking. [Masters Thesis]. University of Victoria; 2011. Available from: http://hdl.handle.net/1828/3388

Virginia Tech
19.
Martin V., Joseph Bacon.
Design of Time-Varying Hybrid Zero Dynamics Controllers for Exponential Stabilization of Agile Quadrupedal Locomotion.
Degree: MS, Mechanical Engineering, 2020, Virginia Tech
URL: http://hdl.handle.net/10919/100689
► This thesis extends a class of controllers designed to address the full dynamics of stable locomotion in quadrupedal robots. As of yet, there is no…
(more)
▼ This thesis extends a class of controllers designed to address the full dynamics of stable
locomotion in quadrupedal robots. As of yet, there is no widely-accepted standard methodology for controlling the complex maneuvers of quadrupedal
locomotion, as most strategies rely on simplified models to ease computational constraints. "Virtual constraint'' controllers - also known as Hybrid Zero Dynamics controllers - are a class of controllers designed to address the full dynamics of legged
locomotion by coordinating the links of a legged robot model to follow a periodic trajectory representing the desired gait pattern. However, the formalized "time-invariant'' model of virtual constraint controllers relies on sensor data to track progress on the desired gait trajectory. This dependence on sensor data makes the resulting controllers unable to start from a state of zero velocity and sensitive to disturbances generated by high velocity impacts. The proposed "time-varying'' virtual constraints controllers utilize the elapsed time to track gait progress and do not have the previously mentioned limitations. Motivated by these benefits, we develop a formalized methodology for designing time-varying virtual constraint controllers for quadrupedal robots. This includes extending time-invariant means of mathematically validating the stability of the gait controllers to time-varying systems. With strategies of designing and validating time-varying virtual constraint controllers formalized, the methodology is implemented on numerical simulations of bounding, trotting, and walking gaits for the quadrupedal robot Minitaur which validates the stability and feasibility of the developed controllers.
Advisors/Committee Members: Akbari Hamed, Kaveh (committeechair), Leonessa, Alexander (committee member), Komendera, Erik (committee member).
Subjects/Keywords: Nonlinear Control; Quadrupedal Locomotion
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Martin V., J. B. (2020). Design of Time-Varying Hybrid Zero Dynamics Controllers for Exponential Stabilization of Agile Quadrupedal Locomotion. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/100689
Chicago Manual of Style (16th Edition):
Martin V., Joseph Bacon. “Design of Time-Varying Hybrid Zero Dynamics Controllers for Exponential Stabilization of Agile Quadrupedal Locomotion.” 2020. Masters Thesis, Virginia Tech. Accessed January 26, 2021.
http://hdl.handle.net/10919/100689.
MLA Handbook (7th Edition):
Martin V., Joseph Bacon. “Design of Time-Varying Hybrid Zero Dynamics Controllers for Exponential Stabilization of Agile Quadrupedal Locomotion.” 2020. Web. 26 Jan 2021.
Vancouver:
Martin V. JB. Design of Time-Varying Hybrid Zero Dynamics Controllers for Exponential Stabilization of Agile Quadrupedal Locomotion. [Internet] [Masters thesis]. Virginia Tech; 2020. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10919/100689.
Council of Science Editors:
Martin V. JB. Design of Time-Varying Hybrid Zero Dynamics Controllers for Exponential Stabilization of Agile Quadrupedal Locomotion. [Masters Thesis]. Virginia Tech; 2020. Available from: http://hdl.handle.net/10919/100689

Virginia Tech
20.
Krummel, Gregory Michael.
Locomotion and Control of Cnidarian-Inspired Robots.
Degree: PhD, Mechanical Engineering, 2019, Virginia Tech
URL: http://hdl.handle.net/10919/99407
► Effective locomotion and maneuvering in aquatic environments is important for survival for marine fauna. The ability to move quickly, change direction, and tune energy consumption…
(more)
▼ Effective
locomotion and maneuvering in aquatic environments is important for survival for marine fauna. The ability to move quickly, change direction, and tune energy consumption for long migrations is critical for escape from predators and pursuit of prey. This controlled propulsion in terms of varying speed, turning rates, and actuation effort is of interest for the next generation of underwater vehicle design. Integration of biological functional simplicity, robustness, and superior performance enables robotic vehicles to successfully complete difficult and dynamic operational goals. Gelatinous animals known as Cnidarians employ a wide variety of propulsive methods, ranging from the simple but efficient propulsion of large jellyfish to the rapid and highly maneuverable multi-jet propulsion of colonial animals known as siphonophores. This dissertation studies how these two extremes of underwater soft body propulsion are able to achieve simple yet effective control and
locomotion, and thus inform the design of effective vehicle propulsion control and actuation. Two large single bell jellyfish robots, Cyro 2 and Cyro 3, were designed and constructed to implement the simple body form and propulsive methods of large jellyfish to study the unique locomotive characteristics and fluid interactions that generate straight swimming and turning maneuvers. The other extreme of small soft-body colonies moving by multi-jet propulsion was subsequently investigated in-depth, starting with a characterization of the biological fluid jetting actions and gaits. The results of these performance capabilities were then applied to an experimental robotic model with bio-inspired construction and controls to verify an elegant but highly functional neurological control scheme and the kinematic capabilities from varying jetting gait patterns.
Advisors/Committee Members: Priya, Shashank (committeechair), Mueller, Rolf (committee member), Tafti, Danesh K. (committee member), Socha, John J. (committee member).
Subjects/Keywords: jellyfish; siphonophore; robot; control; locomotion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Krummel, G. M. (2019). Locomotion and Control of Cnidarian-Inspired Robots. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/99407
Chicago Manual of Style (16th Edition):
Krummel, Gregory Michael. “Locomotion and Control of Cnidarian-Inspired Robots.” 2019. Doctoral Dissertation, Virginia Tech. Accessed January 26, 2021.
http://hdl.handle.net/10919/99407.
MLA Handbook (7th Edition):
Krummel, Gregory Michael. “Locomotion and Control of Cnidarian-Inspired Robots.” 2019. Web. 26 Jan 2021.
Vancouver:
Krummel GM. Locomotion and Control of Cnidarian-Inspired Robots. [Internet] [Doctoral dissertation]. Virginia Tech; 2019. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10919/99407.
Council of Science Editors:
Krummel GM. Locomotion and Control of Cnidarian-Inspired Robots. [Doctoral Dissertation]. Virginia Tech; 2019. Available from: http://hdl.handle.net/10919/99407

Michigan State University
21.
Patton, James Lanphier.
Forward dynamic modeling of human locomotion.
Degree: MS, Department of Material Science and Mechanics, 1993, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:23895
Subjects/Keywords: Human locomotion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Patton, J. L. (1993). Forward dynamic modeling of human locomotion. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:23895
Chicago Manual of Style (16th Edition):
Patton, James Lanphier. “Forward dynamic modeling of human locomotion.” 1993. Masters Thesis, Michigan State University. Accessed January 26, 2021.
http://etd.lib.msu.edu/islandora/object/etd:23895.
MLA Handbook (7th Edition):
Patton, James Lanphier. “Forward dynamic modeling of human locomotion.” 1993. Web. 26 Jan 2021.
Vancouver:
Patton JL. Forward dynamic modeling of human locomotion. [Internet] [Masters thesis]. Michigan State University; 1993. [cited 2021 Jan 26].
Available from: http://etd.lib.msu.edu/islandora/object/etd:23895.
Council of Science Editors:
Patton JL. Forward dynamic modeling of human locomotion. [Masters Thesis]. Michigan State University; 1993. Available from: http://etd.lib.msu.edu/islandora/object/etd:23895

University of Florida
22.
Lad, Susan E.
Haversian Remodeling in Primate Limb Bones Effects of Loading Magnitude, Frequency, and Strain Mode.
Degree: PhD, Anthropology, 2018, University of Florida
URL: https://ufdc.ufl.edu/UFE0054010
► Haversian remodeling is the resorption and subsequent replacement of cortical bone, resulting in the formation of secondary osteons. Remodeling is a process that allows the…
(more)
▼ Haversian remodeling is the resorption and subsequent replacement of cortical bone, resulting in the formation of secondary osteons. Remodeling is a process that allows the skeleton to maintain structural integrity and adapt to mechanical loading throughout life. However, exactly how closely remodeling is tied to loading parameters such as strain magnitude, frequency, and mode is not entirely understood. This dissertation addresses three main questions about bone remodeling: [1] Is the majority of bone remodeling throughout the skeleton targeted to microdamage caused by mechanical loading, or is it non-targeted, occurring more stochastically to aid in mineral homeostasis? [2] How closely do the density and distribution of secondary bone reflect the loading history (i.e., strain magnitude, frequency, mode)? [3] Is there variation in secondary bone density and distribution within the skeleton, and can variation be explained by the unique loading parameters of different skeletal elements?
Advisors/Committee Members: DAEGLING,DAVID (committee chair), DELEON,VALERIE BURKE (committee member), COHN,MARTIN J (committee member).
Subjects/Keywords: locomotion – osteon – strain – stress
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Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Lad, S. E. (2018). Haversian Remodeling in Primate Limb Bones Effects of Loading Magnitude, Frequency, and Strain Mode. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0054010
Chicago Manual of Style (16th Edition):
Lad, Susan E. “Haversian Remodeling in Primate Limb Bones Effects of Loading Magnitude, Frequency, and Strain Mode.” 2018. Doctoral Dissertation, University of Florida. Accessed January 26, 2021.
https://ufdc.ufl.edu/UFE0054010.
MLA Handbook (7th Edition):
Lad, Susan E. “Haversian Remodeling in Primate Limb Bones Effects of Loading Magnitude, Frequency, and Strain Mode.” 2018. Web. 26 Jan 2021.
Vancouver:
Lad SE. Haversian Remodeling in Primate Limb Bones Effects of Loading Magnitude, Frequency, and Strain Mode. [Internet] [Doctoral dissertation]. University of Florida; 2018. [cited 2021 Jan 26].
Available from: https://ufdc.ufl.edu/UFE0054010.
Council of Science Editors:
Lad SE. Haversian Remodeling in Primate Limb Bones Effects of Loading Magnitude, Frequency, and Strain Mode. [Doctoral Dissertation]. University of Florida; 2018. Available from: https://ufdc.ufl.edu/UFE0054010

University of Ontario Institute of Technology
23.
Carmichael, Christopher.
Spring Stepper: a makerspace controller for seated hands-free locomotion in virtual reality.
Degree: 2019, University of Ontario Institute of Technology
URL: http://hdl.handle.net/10155/1130
► Natural locomotion is crucial for improving presence in a virtual environment (VE), while also reducing simulator sickness. While research in various areas of virtual reality…
(more)
▼ Natural
locomotion is crucial for improving presence in a virtual environment (VE), while also reducing simulator sickness. While research in various areas of virtual reality (VR), such as head-mounted displays (HMD) and optical tracking, has been advancing at an unprecedented rate, there is currently a lack of suitable hands-free
locomotion devices for VR, with most existing
locomotion solutions involving complex, high-cost systems. This thesis presents the Spring Stepper, a hands-free, consumer-level seated VR
locomotion controller. The presented system is created with open- source readily available development tools, commonly known as "makerspace" tools, such as 3D printing and Arduino, an open electronics platform. The full design and development process of the system is discussed, including analyzing existing literature to gather requirements, and the iterative design process to create the prototype. Finally, the prototype was validated through user testing by comparing it to existing consumer-level seated VR
locomotion devices for speed, ability to allow accurate hand interactions, and usability.
Advisors/Committee Members: Quevedo, Alvaro Joffre Uribe.
Subjects/Keywords: Virtual reality; Locomotion; Makerspace
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Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Carmichael, C. (2019). Spring Stepper: a makerspace controller for seated hands-free locomotion in virtual reality. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/1130
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Carmichael, Christopher. “Spring Stepper: a makerspace controller for seated hands-free locomotion in virtual reality.” 2019. Thesis, University of Ontario Institute of Technology. Accessed January 26, 2021.
http://hdl.handle.net/10155/1130.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Carmichael, Christopher. “Spring Stepper: a makerspace controller for seated hands-free locomotion in virtual reality.” 2019. Web. 26 Jan 2021.
Vancouver:
Carmichael C. Spring Stepper: a makerspace controller for seated hands-free locomotion in virtual reality. [Internet] [Thesis]. University of Ontario Institute of Technology; 2019. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10155/1130.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Carmichael C. Spring Stepper: a makerspace controller for seated hands-free locomotion in virtual reality. [Thesis]. University of Ontario Institute of Technology; 2019. Available from: http://hdl.handle.net/10155/1130
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Melbourne
24.
Lai, Adrian.
Muscle and tendon mechanical interactions during human locomotion.
Degree: 2015, University of Melbourne
URL: http://hdl.handle.net/11343/59407
► Despite the common view that muscles and tendons are two separate entities of the musculoskeletal system, their mechanical functions are inextricably linked. Muscles contract and…
(more)
▼ Despite the common view that muscles and tendons are two separate entities of the musculoskeletal system, their mechanical functions are inextricably linked. Muscles contract and develop forces, which are transmitted by the tendon to the skeleton to produce joint motion. At the same time, muscles generate work while tendons store and recover elastic strain energy to maintain the exchange of mechanical energy of the body. Understanding muscle and tendon interactions is vital in gaining a full appreciation into how the human lower limb muscles coordinate and power locomotion. Furthermore, alterations in locomotion conditions such as mode and speed can vary the strategies utilised by the lower limb muscles to maintain the mechanical energy of the body as well as to develop sufficient support and propulsive force. Despite the wealth of knowledge of muscle mechanics during human locomotion, muscle fibre and tendon interactions remain unexplored because of the difficulties involved in non-invasively measuring dynamic muscle force and behaviour. Of particular interest is the influence of tendon elasticity on the muscle fibre behaviour and efficiency.
In this thesis, we combined experimental data with computational muscle modelling and created a validated framework with which to investigate muscle fibre and tendon interactions in the human ankle plantar-flexors across a range of locomotion conditions from slow walking to fast running, steady-state running to sprint accelerations. Real-time, dynamic ultrasound was used to measure in-vivo muscle and tendon behaviour in the ankle plantar-flexors while computer simulations quantified muscle and tendon behaviour (length and velocity) and energetics. Together, these techniques allowed for non-invasive investigations into the influence of tendon elasticity on muscular work and the operating efficiency of the muscle fibres during human locomotion.
The results of this thesis demonstrated that during human locomotion, the muscle fibres in the ankle plantar-flexors maintained high mechanical efficiency for force development as a consequence of tendon elasticity. For instance, with faster steady-state running, the ankle plantar-flexors continued to prioritise tendon elastic strain energy over muscle fibre work for generating the propulsion energy required for steady-state running. This interaction allowed the muscle fibres to develop large forces while remaining at favourable regions of their physiological force-length and force-velocity relationships. This interaction between the muscle fibres and tendon in the ankle plantar-flexors was further affirmed when in-vivo muscle fascicle and tendon behaviour were measured across a range of walking and running speeds. Thus, while muscle fibres developed the support and propulsive forces, the stretch and recoil of the elastic tendon supplemented the propulsion energy generated by the ankle plantar-flexors. Interestingly, our results also suggest that tendon elasticity exists because the muscle fibres in the ankle plantar-flexors alone…
Subjects/Keywords: biomechanics; modelling; locomotion; muscle
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lai, A. (2015). Muscle and tendon mechanical interactions during human locomotion. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/59407
Chicago Manual of Style (16th Edition):
Lai, Adrian. “Muscle and tendon mechanical interactions during human locomotion.” 2015. Doctoral Dissertation, University of Melbourne. Accessed January 26, 2021.
http://hdl.handle.net/11343/59407.
MLA Handbook (7th Edition):
Lai, Adrian. “Muscle and tendon mechanical interactions during human locomotion.” 2015. Web. 26 Jan 2021.
Vancouver:
Lai A. Muscle and tendon mechanical interactions during human locomotion. [Internet] [Doctoral dissertation]. University of Melbourne; 2015. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/11343/59407.
Council of Science Editors:
Lai A. Muscle and tendon mechanical interactions during human locomotion. [Doctoral Dissertation]. University of Melbourne; 2015. Available from: http://hdl.handle.net/11343/59407

University of Southern California
25.
Harbick, Kale.
Design and control of a two-mode monopod.
Degree: PhD, Computer Science (Robotics &
Automation), 2008, University of Southern California
URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/89555/rec/1857
► Legged machines can traverse terrain unreachable by wheels or tracks. Similarly running machines have capabilities that exceed those of walking machines. The running machines constructed…
(more)
▼ Legged machines can traverse terrain unreachable by
wheels or tracks. Similarly running machines have capabilities that
exceed those of walking machines. The running machines constructed
thus far have mainly served as existence proofs of various single
locomotion modes. In this thesis we present a robot design that
incorporates two
locomotion modes, hopping and scooting, with a
minimal number of actuators, and the added capability of being able
to transition between modes as needed. We develop controllers for
both modes and demonstrate their feasibility in simulation. We also
present experimental results for a scooting robot.
Advisors/Committee Members: Sukhatme, Gaurav S. (Committee Chair), Schaal, Stefan (Committee Member), McNitt-Gray, Jill L. (Committee Member).
Subjects/Keywords: locomotion; hopping
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Harbick, K. (2008). Design and control of a two-mode monopod. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/89555/rec/1857
Chicago Manual of Style (16th Edition):
Harbick, Kale. “Design and control of a two-mode monopod.” 2008. Doctoral Dissertation, University of Southern California. Accessed January 26, 2021.
http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/89555/rec/1857.
MLA Handbook (7th Edition):
Harbick, Kale. “Design and control of a two-mode monopod.” 2008. Web. 26 Jan 2021.
Vancouver:
Harbick K. Design and control of a two-mode monopod. [Internet] [Doctoral dissertation]. University of Southern California; 2008. [cited 2021 Jan 26].
Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/89555/rec/1857.
Council of Science Editors:
Harbick K. Design and control of a two-mode monopod. [Doctoral Dissertation]. University of Southern California; 2008. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/89555/rec/1857

University of Arizona
26.
Miller, Julie Elizabeth.
Wandering Behavior in Manduca Sexta: Investigating Steroid Hormone Effects on Neural Circuits For Locomotor Behavior
.
Degree: 2005, University of Arizona
URL: http://hdl.handle.net/10150/194073
► Steroid hormones alter the excitability of neural circuits for motor behavior in vertebrates and invertebrates. The insect Manduca sexta, with its well-characterized developmental and endocrinological…
(more)
▼ Steroid hormones alter the excitability of neural circuits for motor behavior in vertebrates and invertebrates. The insect Manduca sexta, with its well-characterized developmental and endocrinological history, is a useful model system to study these effects. The wandering behavior is a stage-specific locomotor behavior triggered by the steroid hormone 20-hydroxyecdysone (20E) and consists of crawling and burrowing movements as the animal searches for a pupation site.The results of this dissertation show that 20E acts on the isolated larval nervous system to induce wandering activity. The mechanisms underlying the generation of this activity share features similar to other invertebrate systems, including the presence of segmental central pattern generating circuits. The time course for the nervous system response to 20E is long, suggestive of a genomic mechanism of action, and there are no earlier rapid effects of 20E on the intrinsic membrane properties of the abdominal motoneurons. The site of 20E action in inducing wandering
locomotion is unlikely to be the abdominal motoneurons, but interneurons presynaptic to these motoneurons. One possible site of 20E action is the brain, which shows stage-dependent expression of ecdysteroid receptors in certain populations of neurons.Descending regulation by the brain and subesophageal ganglion (SEG) is exerted over the segmental motor circuits for crawling and burrowing and reflects stage-dependent differences. Prior to wandering, the brain exerts inhibition over the segmental motor circuits for crawling, but this inhibition is not present during wandering. Removal of the brain, SEG, and thoracic ganglia during on-going fictive
locomotion alters the phase relationships between abdominal segments. Further alterations of fictive crawling motor output are observed in more reduced preparations, indicating the importance of intact connections between abdominal ganglia in the production of a reliable motor program. The SEG drives the fictive burrowing motor program. The burrowing motor program is more robustly expressed in nerve cords from wandering larvae, suggesting a stage-dependent difference due to 20E exposure. Subsequent future experiments will use electrophysiological methods and genetic manipulations in Manduca sexta and Drosophila melanogaster, respectively, to explore target sites for hormone action in the brain and the characterization of brain neurons that drive wandering behavior.
Advisors/Committee Members: Levine, Richard B (advisor), Tolbert, Leslie P. (committeemember), Rance, Naomi E. (committeemember), Yool, Andrea J. (committeemember), Gruener, Raphael P. (committeemember), Fregosi, Ralph F. (committeemember).
Subjects/Keywords: hormones;
locomotion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Miller, J. E. (2005). Wandering Behavior in Manduca Sexta: Investigating Steroid Hormone Effects on Neural Circuits For Locomotor Behavior
. (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/194073
Chicago Manual of Style (16th Edition):
Miller, Julie Elizabeth. “Wandering Behavior in Manduca Sexta: Investigating Steroid Hormone Effects on Neural Circuits For Locomotor Behavior
.” 2005. Doctoral Dissertation, University of Arizona. Accessed January 26, 2021.
http://hdl.handle.net/10150/194073.
MLA Handbook (7th Edition):
Miller, Julie Elizabeth. “Wandering Behavior in Manduca Sexta: Investigating Steroid Hormone Effects on Neural Circuits For Locomotor Behavior
.” 2005. Web. 26 Jan 2021.
Vancouver:
Miller JE. Wandering Behavior in Manduca Sexta: Investigating Steroid Hormone Effects on Neural Circuits For Locomotor Behavior
. [Internet] [Doctoral dissertation]. University of Arizona; 2005. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10150/194073.
Council of Science Editors:
Miller JE. Wandering Behavior in Manduca Sexta: Investigating Steroid Hormone Effects on Neural Circuits For Locomotor Behavior
. [Doctoral Dissertation]. University of Arizona; 2005. Available from: http://hdl.handle.net/10150/194073

Clemson University
27.
Palecek, Amanda Marie.
The Influence of Water Depth on the Locomotor Kinematics of the Chilean Flamingo (Phoenicopterus chilensis).
Degree: MS, Biological Sciences, 2019, Clemson University
URL: https://tigerprints.clemson.edu/all_theses/3221
► Vertebrates exhibit a diverse range of locomotor modes and associated morphological structures. Although many vertebrates can be classified as using distinct aquatic or terrestrial…
(more)
▼ Vertebrates exhibit a diverse range of locomotor modes and associated morphological structures. Although many vertebrates can be classified as using distinct aquatic or terrestrial locomotor behaviors, several species use a terrestrial mode of
locomotion while only partly submerged in aquatic environments, a behavior called wading. Wading can be observed in a variety of taxa including amphibians, reptiles, mammals, and birds. Although there are over 100 species of wading birds, quantitative measurements of avian wading kinematics have not been performed. To address the lack of comparative studies on avian wading kinematics, video footage of
Phoenicopterus chilensis (Chilean flamingo) was collected and analyzed for several kinematic variables during walking on land and wading through increasing depths of water. Step height increased as water depth increased, indicating exaggerated hindlimb movements in deeper waters. Minimum ankle angle, and tibiotarsal angle to the horizontal, decreased in deep waters, indicating greater folding together of the tibiotarsus and tarsometatarsus that likely reduced drag induced by contact between water and the limb. In addition, the minimum angle of the head and the minimum distance between the head and body both increased with increasing water depth, potentially reflecting changes in mass distribution allowed by the increased buoyancy afforded by deeper water. These results demonstrate that wading birds make several kinematic adjustments as they move through increasing depths of water, potentially helping them accommodate changes in both drag and buoyancy across habitat gradients.
Advisors/Committee Members: Richard W Blob, Samantha A Price, Miriam A Ashley-Ross, John D DesJardins.
Subjects/Keywords: Bipedal; Birds; Kinematics; Locomotion; Wading
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Palecek, A. M. (2019). The Influence of Water Depth on the Locomotor Kinematics of the Chilean Flamingo (Phoenicopterus chilensis). (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/3221
Chicago Manual of Style (16th Edition):
Palecek, Amanda Marie. “The Influence of Water Depth on the Locomotor Kinematics of the Chilean Flamingo (Phoenicopterus chilensis).” 2019. Masters Thesis, Clemson University. Accessed January 26, 2021.
https://tigerprints.clemson.edu/all_theses/3221.
MLA Handbook (7th Edition):
Palecek, Amanda Marie. “The Influence of Water Depth on the Locomotor Kinematics of the Chilean Flamingo (Phoenicopterus chilensis).” 2019. Web. 26 Jan 2021.
Vancouver:
Palecek AM. The Influence of Water Depth on the Locomotor Kinematics of the Chilean Flamingo (Phoenicopterus chilensis). [Internet] [Masters thesis]. Clemson University; 2019. [cited 2021 Jan 26].
Available from: https://tigerprints.clemson.edu/all_theses/3221.
Council of Science Editors:
Palecek AM. The Influence of Water Depth on the Locomotor Kinematics of the Chilean Flamingo (Phoenicopterus chilensis). [Masters Thesis]. Clemson University; 2019. Available from: https://tigerprints.clemson.edu/all_theses/3221
28.
Papaioannou, George.
A three dimensional mathematical model of the human knee.
Degree: PhD, 1999, University of Strathclyde
URL: http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21143
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248556
► Muscle and joint force during locomotion is estimated according to available formulations consistent with available methods of solving the indeterminate problem. In the case of…
(more)
▼ Muscle and joint force during locomotion is estimated according to available formulations consistent with available methods of solving the indeterminate problem. In the case of the knee joint direct comparisons of results between several optimization methods proposed in the literature presents difficulties due to largely varying model formulation, input data, algorithms and other issues. The application presented here introduces a new optimization program which includes linear and non-linear techniques allowing greater flexibility in problem formulation. It also increases the variety of cost functions under a unified solution which allows for direct evaluation of factors such as optimization criteria and constraints. The method demonstrates that nonlinear solutions lead to more synergistic activity and in contrast to linear formulations, allows antagonistic activity. Nonlinearity also improves concurrence of EMG activity and predicted forces. Higher joint force predictions are resulting as expected from improved predictions of synergistic-antagonistic activity. The formulation allows for relaxation of the requirement that muscles resolve the entire intersegmental moment which in turn maintains muscle synergism in the nonlinear formulation while relieving muscle antagonism and reducing the predicted joint contact force. These methods allow for more possibilities for exploring new optimization formulations and in comparing the solutions to previously reported formulation. The present study based its input data on healthy subjects volunteering for a variety of walking tasks involving normal walking and turning during walking. Muscle and joint contact forces agree with other published results and the lateral: medial bony contact force distribution is calculated as 1: 2.5.
Subjects/Keywords: 571.4; Locomotion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Papaioannou, G. (1999). A three dimensional mathematical model of the human knee. (Doctoral Dissertation). University of Strathclyde. Retrieved from http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21143 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248556
Chicago Manual of Style (16th Edition):
Papaioannou, George. “A three dimensional mathematical model of the human knee.” 1999. Doctoral Dissertation, University of Strathclyde. Accessed January 26, 2021.
http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21143 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248556.
MLA Handbook (7th Edition):
Papaioannou, George. “A three dimensional mathematical model of the human knee.” 1999. Web. 26 Jan 2021.
Vancouver:
Papaioannou G. A three dimensional mathematical model of the human knee. [Internet] [Doctoral dissertation]. University of Strathclyde; 1999. [cited 2021 Jan 26].
Available from: http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21143 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248556.
Council of Science Editors:
Papaioannou G. A three dimensional mathematical model of the human knee. [Doctoral Dissertation]. University of Strathclyde; 1999. Available from: http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21143 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248556

University of Waterloo
29.
Choudhury, Safwan.
Design and Gait Synthesis for a 3D Lower Body Humanoid.
Degree: 2013, University of Waterloo
URL: http://hdl.handle.net/10012/7170
► Bipedal locomotion is a challenging control engineering problem due to the non-linear dynamics and postural instability of the bipedal form. In addition to these challenges,…
(more)
▼ Bipedal locomotion is a challenging control engineering problem due to the non-linear dynamics and postural instability of the bipedal form. In addition to these challenges, some dynamical effects such as the ground reaction force are difficult to model accurately in simulation. To this end, it is essential to develop physical hardware to validate walking control strategies and gait generation methods. This thesis develops an on-line walking control strategy for humanoid robots and the electromechanical design of a physical platform for experimental validation.
The first part of the thesis presents the development of a 14 degrees-of-freedom (DOF) lower body humanoid robot. The initial electromechanical design of the proposed system is derived from dynamic modeling of a general multibody system. Kinematic trajectories for the lower body joints are extracted from motion captured human gait data to form the preliminary design specifications. The drivetrain components are selected by analyzing the mechanical power requirements, torque-speed profiles, efficiency and thermal characteristics of actuators. The supporting mechanical chassis and power transmission system are designed to raise the center-of-mass (to reduce the swinging inertia of each leg) while minimizing the overall weight of the system.
Refining the design of a complex multibody robotic system like the biped is an iterative process. The mechanical model of the system is transferred from Computer-Aided-Design (CAD) software to a dynamic simulator for analysis and the design is revised to improve performance. This iterative approach is necessary as small changes in the mechanical model can have significant impact on the overall dynamics of the system as well as implications for control design. A streamlined prototyping toolchain is developed in this thesis to extract the relevant kinematic/dynamic parameters of a mechanical system in CAD and automatically generate the equivalent system in a dynamic simulator. This toolchain is used to revise the electromechanical design and generate forward dynamics simulations.
The second portion of this thesis develops a novel walking control strategy for on-line gait synthesis for 3D bipedal robots based on Wight's Foot Placement Estimator (FPE) algorithm. This algorithm is used to determine the desired swing foot position on the ground to \emph{restore} balance for a 2D bipedal robot. The FPE algorithm is extended to the general 3D case by selecting a suitable plane in the desired direction of motion. Complete gait cycles are formed by combining a finite state machine with the 2D FPE solution along the selected plane. Gait initiation is accomplished by computing state-dependent task space trajectories on-line to produce a forward momentum along the selected plane. A whole-body motion control framework (Jacobian-based prioritized task space control scheme) tracks the task space trajectories and generates the appropriate joint level command for each state. The joint level commands are tracked by local high gain…
Subjects/Keywords: biped; gait; electromechanical; locomotion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Choudhury, S. (2013). Design and Gait Synthesis for a 3D Lower Body Humanoid. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/7170
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Choudhury, Safwan. “Design and Gait Synthesis for a 3D Lower Body Humanoid.” 2013. Thesis, University of Waterloo. Accessed January 26, 2021.
http://hdl.handle.net/10012/7170.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Choudhury, Safwan. “Design and Gait Synthesis for a 3D Lower Body Humanoid.” 2013. Web. 26 Jan 2021.
Vancouver:
Choudhury S. Design and Gait Synthesis for a 3D Lower Body Humanoid. [Internet] [Thesis]. University of Waterloo; 2013. [cited 2021 Jan 26].
Available from: http://hdl.handle.net/10012/7170.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Choudhury S. Design and Gait Synthesis for a 3D Lower Body Humanoid. [Thesis]. University of Waterloo; 2013. Available from: http://hdl.handle.net/10012/7170
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Guelph
30.
Pufall, Amanda.
The Effects of Three Styles of Commercial Rearing Aviaries on the Locomotion and Musculoskeletal Development of Pullets.
Degree: MS, Department of Animal Biosciences, 2020, University of Guelph
URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17986
► This research aimed to compare locomotion and musculoskeletal characteristics of white- and brown-feathered strains of pullets reared in three different styles of commercial rearing aviaries.…
(more)
▼ This research aimed to compare
locomotion and musculoskeletal characteristics of white- and brown-feathered strains of pullets reared in three different styles of commercial rearing aviaries. Aviaries were categorized into three styles based on the vertical and horizontal space available during the brooding period. Pullets in the style with the most space during the brooding spent the most time locomoting throughout rearing. Differences in higher intensity behaviours such as running, wing-assisted running, and group
locomotion were most evident during the brooding period. These pullets, as well as white-feathered strains, performed the most vertical transitions and had the strongest leg bones. White-feathered strains had proportionally heavier pectoral muscles, lighter leg muscles, and larger keels than brown-feathered strains. These results indicate that style of rearing aviary and strain of pullet affected their
locomotion and musculoskeletal characteristics which may impact their long-term success in an adult aviary.
Advisors/Committee Members: Widowski, Tina (advisor).
Subjects/Keywords: pullet; rearing; aviary; locomotion; musculoskeletal
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pufall, A. (2020). The Effects of Three Styles of Commercial Rearing Aviaries on the Locomotion and Musculoskeletal Development of Pullets. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17986
Chicago Manual of Style (16th Edition):
Pufall, Amanda. “The Effects of Three Styles of Commercial Rearing Aviaries on the Locomotion and Musculoskeletal Development of Pullets.” 2020. Masters Thesis, University of Guelph. Accessed January 26, 2021.
https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17986.
MLA Handbook (7th Edition):
Pufall, Amanda. “The Effects of Three Styles of Commercial Rearing Aviaries on the Locomotion and Musculoskeletal Development of Pullets.” 2020. Web. 26 Jan 2021.
Vancouver:
Pufall A. The Effects of Three Styles of Commercial Rearing Aviaries on the Locomotion and Musculoskeletal Development of Pullets. [Internet] [Masters thesis]. University of Guelph; 2020. [cited 2021 Jan 26].
Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17986.
Council of Science Editors:
Pufall A. The Effects of Three Styles of Commercial Rearing Aviaries on the Locomotion and Musculoskeletal Development of Pullets. [Masters Thesis]. University of Guelph; 2020. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17986
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