subject:(Electrogoniometry)

1. Rodrigo Luiz Carregaro. Análise das estratégias de movimento adotadas durante a realização de manuseio de carga.

Degree: 2007, Universidade Federal de São Carlos

URL: http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=1393

► Despite recent technological advances, occupational activities of manual nature are still essential in many sectors and industries. Such activities impose risky conditions, which are inherent… (more)

▼ Despite recent technological advances, occupational activities of manual nature are still essential in many sectors and industries. Such activities impose risky conditions, which are inherent to its nature and can be responsible for musculoskeletal injuries. In addiction, the complexity and the interaction of risk factors, many still not comprehended, that act together during the performance of manual material handlings confer challenges and stimulations to the preventive approach. In this way, two main studies (Studies I and II) and two unfolding studies had been carried through. The main studies contextualized the hamstrings flexibility and its influence on the performance of occupational tasks. The objectives of Study I had been to compare the results of two clinical tests used to evaluate hamstrings flexibility and to evaluate the reliability of the photogrammetric procedure adopted for the analysis. The fingertip-to-floor test and straight leg raise test were applied in 35 healthy male subjects. Based on tests results, subjects were divided into two groups: normal and reduced flexibility. Superficial anatomical landmarks were fixed on bony references by means of manual palpation in order to permit the tracing of the hip, thoracic-lumbar, leg, knee and tibio-tarsal angles. The student t test was applied to evaluate the differences between the two groups, for each variable. Findings showed that hip angle was significant lower at the reduced flexibility group and that the straight leg raise test was more sensible for detecting subjects with reduced flexibility. The aim of Study II was to evaluate the influence of hamstrings flexibility on the movement strategy of the trunk and pelvis adopted by healthy subjects during the performance of the manual handling. Subjects were divided into two groups, based on the straight leg raise test. A JVC digital camera with a sampling of 50 frames/second and positioned perpendicularly to the sagittal plane of the subjects was used to register the activity. The cross-correlation coefficient was used to quantify movement patterns relationship between groups, and the student t test applied to the movement variables in order to determine differences between groups. The results had demonstrated that subjects with reduced flexibility used a lesser pelvic amplitude and bigger amplitudes of the trunk during handling. Still, subjects with reduced flexibility adopted a retroverted movement of the pelvis, without great alterations during the activity. The unfolding studies contextualized the comparison of the strategies adopted by subjects with experience in load handling activities and inexperienced individuals. The Study III had as objective to evaluate the manual handling performed by 16 experienced subjects and 15 inexperienced ones. It was used a flexible electrogoniometer to measure trunk movements and the University of Michigan 3D software to estimate the intradiscal compression in L5/S1 during the handling. The normalized movement patterns were evaluated and the coefficient of… Advisors/Committee Members: Helenice Jane Cote Gil Coury.

Subjects/Keywords: Coluna vertebral; Dor lombar; Eletrogoniometro; Fisioterapia; Biomecânica; Transtornos de traumas acumulados; FISIOTERAPIA E TERAPIA OCUPACIONAL; Manual material handling; Flexibility; Risk factors; Low back pain; Movement strategy; Electrogoniometry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Carregaro, R. L. (2007). Análise das estratégias de movimento adotadas durante a realização de manuseio de carga. (Thesis). Universidade Federal de São Carlos. Retrieved from http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=1393

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Carregaro, Rodrigo Luiz. “Análise das estratégias de movimento adotadas durante a realização de manuseio de carga.” 2007. Thesis, Universidade Federal de São Carlos. Accessed January 16, 2021. http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=1393.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Carregaro, Rodrigo Luiz. “Análise das estratégias de movimento adotadas durante a realização de manuseio de carga.” 2007. Web. 16 Jan 2021.

Vancouver:

Carregaro RL. Análise das estratégias de movimento adotadas durante a realização de manuseio de carga. [Internet] [Thesis]. Universidade Federal de São Carlos; 2007. [cited 2021 Jan 16]. Available from: http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=1393.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Carregaro RL. Análise das estratégias de movimento adotadas durante a realização de manuseio de carga. [Thesis]. Universidade Federal de São Carlos; 2007. Available from: http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=1393

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

2. Leal, Frederico. Neuro-Mechanical Analysis of Eccentric Overload of Elbow Flexors.

Degree: 2013, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2013-01-908

► Eccentric overload in training settings utilizes loads higher than concentric one repetition maximum (1RM). There is no clear definition of eccentric “failure” or 1RM using… (more)

▼ Eccentric overload in training settings utilizes loads higher than concentric one repetition maximum (1RM). There is no clear definition of eccentric “failure” or 1RM using conventional weights, so eccentric 1RM is estimated to be between 145-190% concentric 1RM. Historically, the highest intensity used for eccentric overload is typically 120% of concentric 1RM despite little research using conventional weights with higher eccentric intensities. The purpose of this study was to conduct an exploratory neuro-mechanical analysis of different intensities of elbow flexors eccentric overload using free weights by examining angular kinematics during contraction. Twenty male participants with weight training experience had unilateral concentration curl isometric peak torque assessed on a Humac Norm Dynamometer and concentric 1RM assessed with dumbbells while biceps brachii electromyography (EMG) and elbow joint angle were recorded. Angles were recorded using a custom made electrogoniometer and elbow joint torque was estimated using inverse dynamics. Participants were randomly assigned in counter balanced order to perform eccentric actions at 120%, 140%, 150%, 160% and 170% concentric 1RM with 4 minutes rest between. Variables included peak torque, angular velocity at peak torque, impulse, power, mean EMG, and EMG normalized to peak. Data were analyzed using repeated measures ANOVA or a Friedman test. Angular velocity at peak torque was significantly lower for 120% (65.3 ± 40.8°/s) compared to all other conditions (range: 65.3 ± 40.8 to 162.1 ± 75.2°/s; p<0.01). Peak torque for all conditions (range: 98.2 ± 16.2 to 108.2 ± 21.6 Nm) was significantly higher than isometric peak torque (77.4 ± 16.8Nm; p<0.05). Peak torque at 160% (108.2 ± 21.6Nm) was significantly higher than at 120% (98.2 ± 16.2Nm; p<0.05). Power for 140-170% (range: 166.2 ± 85.7W to 265.8 ± 111.3W) was significantly higher than power at 120% (79.9 ± 66.8W; p<0.05). Impulse was highest at 120% (56.1 ± 54.6Nms) compared to all other conditions (range: 56.2 ± 54.6 to 9.6 ± 3.8Nms; p≤0.05). Impulse at 140% (20.6 ± 11.8Nms) was significantly higher than 170% (9.6 ± 3.8Nms; p<0.05). Isometric mean EMG (0.792 ± 0.285 mV) was significantly higher than all eccentric conditions (range: 0.654 ± 0.313 to 0.533 ± 0.259mV; p<0.05) with no difference between eccentric conditions for mean EMG or EMG normalized to peak. It was concluded that compared to 120%, eccentric overload with intensity ranging from 140-170% concentric 1RM involves minimal increases in peak torque and no change in EMG activation. Intensities above 120% enhance power and decrease impulse. This research has implications on future training prescription of eccentric exercise. Advisors/Committee Members: Farthing, Jonathan P., Lanovaz, Joel L., Chilibeck, Philip D..

Subjects/Keywords: muscle hypertrophy; muscle strength; free weights; electrogoniometry; dumbbells

…Study Design 16 2.2 Participants 16 2.3 Procedures 18 2.4 Electrogoniometry 21 2.5… …Electrogoniometry A custom built electrogoniometer consisting of two aluminum rods connected to a 10k Ohms…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Leal, F. (2013). Neuro-Mechanical Analysis of Eccentric Overload of Elbow Flexors. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2013-01-908

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Leal, Frederico. “Neuro-Mechanical Analysis of Eccentric Overload of Elbow Flexors.” 2013. Thesis, University of Saskatchewan. Accessed January 16, 2021. http://hdl.handle.net/10388/ETD-2013-01-908.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Leal, Frederico. “Neuro-Mechanical Analysis of Eccentric Overload of Elbow Flexors.” 2013. Web. 16 Jan 2021.

Vancouver:

Leal F. Neuro-Mechanical Analysis of Eccentric Overload of Elbow Flexors. [Internet] [Thesis]. University of Saskatchewan; 2013. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/10388/ETD-2013-01-908.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Leal F. Neuro-Mechanical Analysis of Eccentric Overload of Elbow Flexors. [Thesis]. University of Saskatchewan; 2013. Available from: http://hdl.handle.net/10388/ETD-2013-01-908

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. Littell, William Neil. Physiological effects of monocular display augmented, articulated arm-based laser digitizing.

Degree: PhD, Instructional Systems and Workforce Development, 2013, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03272013-121112/ ;

► The process of capturing solid geometry as 3 dimensional data requires the use of laser based reverse engineering hardware, known as a digitizer. Many… (more)

Subjects/Keywords: neck angles; electrogoniometry; motion capture; ergonomics analysis; Head-mounted display; Monocular Display

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APA (6^th Edition):

Littell, W. N. (2013). Physiological effects of monocular display augmented, articulated arm-based laser digitizing. (Doctoral Dissertation). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-03272013-121112/ ;

Chicago Manual of Style (16^th Edition):

Littell, William Neil. “Physiological effects of monocular display augmented, articulated arm-based laser digitizing.” 2013. Doctoral Dissertation, Mississippi State University. Accessed January 16, 2021. http://sun.library.msstate.edu/ETD-db/theses/available/etd-03272013-121112/ ;.

MLA Handbook (7^th Edition):

Littell, William Neil. “Physiological effects of monocular display augmented, articulated arm-based laser digitizing.” 2013. Web. 16 Jan 2021.

Vancouver:

Littell WN. Physiological effects of monocular display augmented, articulated arm-based laser digitizing. [Internet] [Doctoral dissertation]. Mississippi State University; 2013. [cited 2021 Jan 16]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03272013-121112/ ;.

Council of Science Editors:

Littell WN. Physiological effects of monocular display augmented, articulated arm-based laser digitizing. [Doctoral Dissertation]. Mississippi State University; 2013. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03272013-121112/ ;

4. Luis Carlos Paschoarelli. Usabilidade aplicada ao design ergonômico de transdutores de ultra-sonografia: uma proposta metodológica para avaliação e análise do produto.

Degree: 2003, Universidade Federal de São Carlos

URL: http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=23

►

A usabilidade é um dos principais aspectos do desempenho e qualidade da interface mão/instrumentos, cuja aplicação baseia-se em metodologias de design ergonômico. Apesar da evolução… (more)

▼

A usabilidade é um dos principais aspectos do desempenho e qualidade da interface mão/instrumentos, cuja aplicação baseia-se em metodologias de design ergonômico. Apesar da evolução tecnológica, alguns instrumentos manuais ainda não atendem aos critérios da usabilidade e podem gerar problemas ergonômicos em seus usuários. Um exemplo disso é o transdutor utilizado nas atividades ocupacionais da ultra-sonografia (US) de mama, o qual exige grandes esforços biomecânicos. Este estudo teve como objetivo propor um método de avaliação e análise, com base em registros fisiológicos e subjetivos, durante a aplicação de critérios de usabilidade no redesenho ergonômico do transdutor de US de mama. Para a realização dos registros fisiológicos, foi utilizado um eletrogoniômetro Biometrics, para análise dos movimentos do punho, e sensores FSRs para análise de pressão palmar. Para as avaliações subjetivas, foram aplicadas escalas gráficas de percepção. A coleta dos dados ocorreu em fases experimentais: Primeira experimentação - avaliação das posturas de punho durante simulação da atividade com dois modelos comerciais de transdutores (n = 18); Design ergonômico - aplicação dos critérios de usabilidade no redesenho e confecção de mock-up; Segunda experimentação - avaliação das posturas e pontos de pressão palmar, durante simulação da atividade com o novo mock-up e os transdutores comerciais (n = 10); Design ergonômico/Revisão projetual - revisão dos critérios de usabilidade e desenvolvimento de dois novos mockups; Terceira experimentação - avaliação de posturas e pontos de pressão palmar, durante simulação da atividade com os novos mock-ups e os transdutores comerciais (n= 10); Quarta experimentação - avaliação subjetiva de todos os transdutores (n = 11). Os resultados da Primeira experimentação demonstraram elevadas amplitudes médias e máximas. O Design ergonômico resultou no Mock-up 01. Os resultados da Segunda experimentação demonstraram que o Mock-up 01 não apresentou melhorias quanto a posturas de punho, mas uma melhor distribuição de pressão na região palmar. O Design ergonômico/Revisão projetual resultou em dois novos Mock-ups, 02 e 03, os quais apresentaram (nos resultados da terceira experimentação) uma menor amplitude de movimentos e uma melhor distribuição da porcentagem de tempo nas diferentes faixas de amplitude preestabelecidas, bem como da pressão na região palmar, principalmente quanto ao Mock-up 02. Diferenças estatisticamente significativas (p _ 0,05) foram encontradas somente na terceira experimentação, indicando em quais situações os Mock-up 02 e 03 apresentaram melhor desempenho. Os resultados da Quarta experimentação demonstraram o mesmo indicativo da avaliação fisiológica, corroborando seus resultados. Esses procedimentos caracterizaram um método de avaliação e análise de instrumentos manuais, expressivo e complementar para as metodologias de design ergonômico.

The usability is one of the main aspects of the performance and quality of the interface hand/instruments whose applicability is based on methodologies…

Advisors/Committee Members: Helenice Jane Cote Gil Coury.

Subjects/Keywords: ENGENHARIA DE PRODUCAO; Ergonomia; Eletrogoniometria; Design ergonômico; Ultra-sonografia; Usability; Ergonomic design; Ultrasonography; Electrogoniometry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Paschoarelli, L. C. (2003). Usabilidade aplicada ao design ergonômico de transdutores de ultra-sonografia: uma proposta metodológica para avaliação e análise do produto. (Thesis). Universidade Federal de São Carlos. Retrieved from http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=23

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Paschoarelli, Luis Carlos. “Usabilidade aplicada ao design ergonômico de transdutores de ultra-sonografia: uma proposta metodológica para avaliação e análise do produto.” 2003. Thesis, Universidade Federal de São Carlos. Accessed January 16, 2021. http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=23.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Paschoarelli, Luis Carlos. “Usabilidade aplicada ao design ergonômico de transdutores de ultra-sonografia: uma proposta metodológica para avaliação e análise do produto.” 2003. Web. 16 Jan 2021.

Vancouver:

Paschoarelli LC. Usabilidade aplicada ao design ergonômico de transdutores de ultra-sonografia: uma proposta metodológica para avaliação e análise do produto. [Internet] [Thesis]. Universidade Federal de São Carlos; 2003. [cited 2021 Jan 16]. Available from: http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=23.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Paschoarelli LC. Usabilidade aplicada ao design ergonômico de transdutores de ultra-sonografia: uma proposta metodológica para avaliação e análise do produto. [Thesis]. Universidade Federal de São Carlos; 2003. Available from: http://www.bdtd.ufscar.br/htdocs/tedeSimplificado//tde_busca/arquivo.php?codArquivo=23

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Gothenburg / Göteborgs Universitet

5. Gustafsson, Ewa. Physical exposure, musculoskeletal symptoms and attitudes related to ICT use.

Degree: 2009, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/19646

► High prevalence of musculoskeletal symptoms/disorders in neck and upper extremities are reported among computer users. Considering the widespread use of information and communication technology (ICT)… (more)

▼ High prevalence of musculoskeletal symptoms/disorders in neck and upper extremities are reported among computer users. Considering the widespread use of information and communication technology (ICT) and mobile phones becoming more and more like computers with small keyboards it is of importance to identify the factors and conditions related to this use, that influence our health. The overall aim of this thesis was to obtain new ergonomic knowledge of the physical exposure associated with the use of information and communication technology with emphasis on small keyboards, computer mice and young adult ICT users. In an interview study with young adult ICT users, where the data analysis was performed with the grounded theory method, was showed that the young adults experienced ICT as a tool for being and acting in the present, to be social, efficient and independent with almost unlimited opportunities but also risks. A comparative experimental study with experienced computer mouse users evaluated muscle activity with surface electromyography and wrist positions/movements with electrogoniometry during work with a traditional flat computer mouse (pronated hand position) and a vertical computer mouse (neutral hand position). Work with the vertical computer mouse decreased the muscle activity in the extensor muscles in the forearm and in the first dorsal interossei muscle, and the ulnar deviation in the wrist compared to the traditional mouse. An experimental study, with young adults with and without musculoskeletal symptoms from neck and/or upper extremities, evaluated thumb positions/movements with electrogoniometry, muscle activity with surface electromyography, and working techniques with an observational protocol when text entering on a mobile phone. The young adults with symptoms had lower muscle activity in the abductor pollicis longus and tended to have higher velocity and fewer pauses in the thumb movements compared to those without symptoms. Females had higher muscle activity in the first dorsal interossei and the abductor pollicis longus compared to males. It was more common in the group with symptoms to sit with the head bent forward, to sit without forearm and back support and to enter text with one thumb rather than two compared to those without symptoms. Use of forearm support decreased the muscle activity in the trapezius muscles. Use of one hand grip increased the muscle activity in the extensor muscles in the forearm. High observed velocity in the thumb movements was associated with increased muscle activity in the extensor muscles in the forearm compared to low or moderate velocity. In conclusion, this thesis shows that computer mouse design has an effect on the muscle activity in the forearm and hand, and on the wrist positions and movements. It also shows that the individual factors working technique and gender have an effect on muscle activity and thumb movements when entering text on a mobile phone. Furthermore, there were differences in working techniques, thumb movements, and muscle activity…

Subjects/Keywords: Input device; Wrist movements; Electrogoniometry; EMG; Muscle activity; Thumb movements; Working technique; Information and communication technology; Computer mouse; Mobile phone

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gustafsson, E. (2009). Physical exposure, musculoskeletal symptoms and attitudes related to ICT use. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/19646

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gustafsson, Ewa. “Physical exposure, musculoskeletal symptoms and attitudes related to ICT use.” 2009. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed January 16, 2021. http://hdl.handle.net/2077/19646.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gustafsson, Ewa. “Physical exposure, musculoskeletal symptoms and attitudes related to ICT use.” 2009. Web. 16 Jan 2021.

Vancouver:

Gustafsson E. Physical exposure, musculoskeletal symptoms and attitudes related to ICT use. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/2077/19646.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gustafsson E. Physical exposure, musculoskeletal symptoms and attitudes related to ICT use. [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. Available from: http://hdl.handle.net/2077/19646

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Gothenburg / Göteborgs Universitet

6. Jonsson, Per M G. Wrist and thumb joint postures and motions - measurements using electrogoniometry and EMG.

Degree: 2009, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/21193

► Correct measurements of the joints’ extreme postures, velocity and repetitiveness are important for studies of the origin of musculoskeletal disorders. Posture measurements of wrist and… (more)

▼ Correct measurements of the joints’ extreme postures, velocity and repetitiveness are important for studies of the origin of musculoskeletal disorders. Posture measurements of wrist and thumb joints may also provide insights into input device designs that may reduce effort and/or facilitate productivity. Electrogoniometry offers a relatively simple and objective way to measure joint postures and motions. The expectation is that electrogoniometric instruments will provide better measures of postures and movements than the more subjective methods such as self-reporting or observation. In the first part of this thesis, two wrist goniometer systems were evaluated. The systems differed in how the goniometers were engineered and positioned over wrist and forearm. One system was integrated into a fingerless glove and floated over the forearm whereas the other system was mounted directly over the wrist. ”True” wrist positions were established with the aid of a fixture that allowed the positioning of the wrist in known angles. The “Crosstalk” – when movement in one plane artificially causes movement to be measured in another movement plane, “offset” – where the measured movement axes differ or are offset from the actual movement axes, and “range of motion” – the difference between the actual and measured range of motion of the joint, were compared. The measurement errors were substantial with both systems for simple, standardized wrist postures. However, the system with the transducers built-in in the fingerless glove had considerably less crosstalk errors and proved to have less between-subject differences. The similarities and differences in the measurement errors could be attributed to differences in systems design and methods to improve the accuracy of wrist posture measurement were provided. In the second part of this thesis, the accuracy and feasibility of measuring thumb postures and movements with a simple thumb-mounted electrogoniometer were evaluated. The ”true” thumb positions were established and defined using a manual goniometer. The posture measurement error of the thumb-based electrogoniometer was small relative to the manual goniometer, and on average, less than 5 degrees. A follow-up study determined whether this simple thumb-mounted goniometer could provide meaningful information on thumb posture during mobile phone use. When measuring thumb posture during SMS messaging, thumb posture was shown to be affected by the size of the mobile phone and differences in movement speeds were seen between the two movement axes of the thumb. Thumb movements in abduction/adduction were almost twice as fast as those in flexion/extension. It was also established that the thumb worked near the extreme ranges of motion – which is known to contribute to musculoskeletal disorders. Finally, this thesis determined whether measurements with a simple, thumb mounted electrogoniometer could be used in place of more complicated measures of muscle activity (EMG) for assessing musculoskeletal load during mobile phone use. Sophisticated…

Subjects/Keywords: Accuracy; Electrogoniometry; Input device; Information and communication technology; Mobile phone; Muscle activity; Posture; Thumb; Wrist

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jonsson, P. M. G. (2009). Wrist and thumb joint postures and motions - measurements using electrogoniometry and EMG. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/21193

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jonsson, Per M G. “Wrist and thumb joint postures and motions - measurements using electrogoniometry and EMG.” 2009. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed January 16, 2021. http://hdl.handle.net/2077/21193.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jonsson, Per M G. “Wrist and thumb joint postures and motions - measurements using electrogoniometry and EMG.” 2009. Web. 16 Jan 2021.

Vancouver:

Jonsson PMG. Wrist and thumb joint postures and motions - measurements using electrogoniometry and EMG. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/2077/21193.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jonsson PMG. Wrist and thumb joint postures and motions - measurements using electrogoniometry and EMG. [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. Available from: http://hdl.handle.net/2077/21193

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

7. Reinholdt, Carina. Surgical restoration of grasp control in tetraplegia.

Degree: 2013, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/31718

► Surgical Restoration of Grasp Control in Tetraplegia Carina Reinholdt Department of Orthopedics/Hand Surgery, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden… (more)

▼ Surgical Restoration of Grasp Control in Tetraplegia Carina Reinholdt Department of Orthopedics/Hand Surgery, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden ABSTRACT Aim: The overall aim of this thesis was to improve the grasp and release function of patients with tetraplegia undergoing reconstructive hand surgery. In order to reach this objective, new and more cost-efficient surgical concepts with maintained patient safety were designed. Patients and methods: 112 individuals were assessed pre- and postoperatively on their pinch and grip strength, range of motion (ROM), hand opening , as well as a satisfactory score (COPM) (retrospective comparative studies I-IV) and dynamic electro-goniometry to assess spasticity (prospective pilot study V). Results: I: Selective release of tight interossei muscles in the hand (distal ulnar intrinsic release) increased the ROM up to 45 %. II: The alphabet procedure (a single-stage combination of procedures) reliably provided tetraplegic patients with pinch, grasp and release function after only one operation and one rehabilitation period. III: The extensor carpi ulnaris tenodesis corrected radial deviation deformity of the wrist joint and increased the grip strength by double. IV: Patients who underwent the alphabet procedure demonstrated significantly more grip strength and opening of the hand compared with patients, who had traditional grip reconstruction. Early active rehabilitation was particularly important after multiple simultaneous procedures. V: Dynamic electro-goniometry proved a feasible method to assess spasticity-reducing surgery by measuring joint angular velocity and repetitions per second. Together with COPM, these assessment points can be used to evaluate the outcome of surgery or non-operative spasticity treatments. Conclusion: This thesis reports development and refinement of several surgical techniques that individually and combined, facilitate the reanimation of grasp control in people with tetraplegia. Rebalancing of the hand by selective release and tendon lengthening techniques enables more favorable mechanical conditions for the forearm, wrist and finger actuators in patients with tightness and spasticity. Shorter total time in the operation room and for rehabilitation with preserved patient safety enforce the recommendation of applying these techniques.

Subjects/Keywords: tetraplegia; tendon transfers; alphabet procedure; spasticity; grip and release; electrogoniometry; distal intrinsic release; ECU-tenodesis; grip strength; intrisic tightness; pinch strength

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APA (6^th Edition):

Reinholdt, C. (2013). Surgical restoration of grasp control in tetraplegia. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/31718

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Reinholdt, Carina. “Surgical restoration of grasp control in tetraplegia.” 2013. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed January 16, 2021. http://hdl.handle.net/2077/31718.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Reinholdt, Carina. “Surgical restoration of grasp control in tetraplegia.” 2013. Web. 16 Jan 2021.

Vancouver:

Reinholdt C. Surgical restoration of grasp control in tetraplegia. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 2013. [cited 2021 Jan 16]. Available from: http://hdl.handle.net/2077/31718.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Reinholdt C. Surgical restoration of grasp control in tetraplegia. [Thesis]. University of Gothenburg / Göteborgs Universitet; 2013. Available from: http://hdl.handle.net/2077/31718

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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