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You searched for subject:(Muscle contributions). Showing records 1 – 2 of 2 total matches.

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University of Texas – Austin

1. Harper, Nicole Guckert. Muscle function and coordination of amputee and non-amputee stair ascent.

Degree: PhD, Mechanical engineering, 2015, University of Texas – Austin

Stair ascent is a common activity of daily living and is necessary for maintaining independence in a variety of community environments. However, it can be a biomechanically challenging task. For example, for transtibial amputees the loss of the ankle plantarflexors coupled with the task demands of stair ascent require amputees to develop compensatory mechanisms that utilize the prosthesis and remaining musculature. The overall goal of this research was to use advanced musculoskeletal modeling and simulation techniques in a series of studies to understand how individual muscles contribute to stair ascent in non-amputees and how unilateral transtibial amputees compensate with the prosthesis and remaining musculature during stair ascent. In the first study, a simulation of non-amputee stair ascent was developed to elucidate the contributions of individual muscles and the biomechanical mechanisms by which they accomplish stair ascent. The hip abductors, hip extensors, knee extensors and plantarflexors were found to work synergistically to generate, absorb and/or transfer mechanical power to accomplish stair ascent. In the second study, a simulation of transtibial amputee stair ascent was generated to identify functional deficits and compensations necessary for amputees to ascend stairs. The passive prosthesis was able to emulate the role of the uniarticular plantarflexors, but was unable to replicate the role of the biarticular plantarflexors. As a result, compensations from other muscles were necessary. In the final study, simulations of non-amputee and amputee stair ascent were used to determine the contributions of individual muscles and the prosthesis to dynamic balance control, which was quantified using whole-body angular momentum. The prosthesis was able to replicate the role of the plantarflexors in the regulation of sagittal-plane and, to a lesser extent, transverse-plane angular momentum. However, while the non-amputee plantarflexors contributed minimally to frontal-plane angular momentum, the prosthesis acted to rotate the body towards the contralateral leg, which required additional muscle compensations. By understanding the role of the individual muscles and prosthesis in achieving stair ascent and identifying the compensations used by amputees, this research provides a foundation for designing refined prostheses and targeted rehabilitation programs that improve an individual’s ability to ascend stairs. Advisors/Committee Members: Neptune, Richard R. (advisor), Barr, Ronald E (committee member), Deshpande, Ashish D (committee member), Sulzer, James S (committee member), Wilken, Jason M (committee member).

Subjects/Keywords: Stair ascent; Amputee; Forward dynamics; Modeling and simulation; Muscle contributions; Whole-body angular momentum

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APA (6th Edition):

Harper, N. G. (2015). Muscle function and coordination of amputee and non-amputee stair ascent. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/31547

Chicago Manual of Style (16th Edition):

Harper, Nicole Guckert. “Muscle function and coordination of amputee and non-amputee stair ascent.” 2015. Doctoral Dissertation, University of Texas – Austin. Accessed April 11, 2021. http://hdl.handle.net/2152/31547.

MLA Handbook (7th Edition):

Harper, Nicole Guckert. “Muscle function and coordination of amputee and non-amputee stair ascent.” 2015. Web. 11 Apr 2021.

Vancouver:

Harper NG. Muscle function and coordination of amputee and non-amputee stair ascent. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2015. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/2152/31547.

Council of Science Editors:

Harper NG. Muscle function and coordination of amputee and non-amputee stair ascent. [Doctoral Dissertation]. University of Texas – Austin; 2015. Available from: http://hdl.handle.net/2152/31547


University of Windsor

2. Derouin, Aaron. Muscle contributions to knee joint stability: Effects of ACL injury and knee brace use.

Degree: M.H.K., Kinesiology, 2006, University of Windsor

Subjects/Keywords: ACL; BRACE; CONTRIBUTIONS; EFFECTS; INJURY; JOINT; KNEE; MUSCLE; STABILITY; USE

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

APA (6th Edition):

Derouin, A. (2006). Muscle contributions to knee joint stability: Effects of ACL injury and knee brace use. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/6943

Chicago Manual of Style (16th Edition):

Derouin, Aaron. “Muscle contributions to knee joint stability: Effects of ACL injury and knee brace use.” 2006. Masters Thesis, University of Windsor. Accessed April 11, 2021. https://scholar.uwindsor.ca/etd/6943.

MLA Handbook (7th Edition):

Derouin, Aaron. “Muscle contributions to knee joint stability: Effects of ACL injury and knee brace use.” 2006. Web. 11 Apr 2021.

Vancouver:

Derouin A. Muscle contributions to knee joint stability: Effects of ACL injury and knee brace use. [Internet] [Masters thesis]. University of Windsor; 2006. [cited 2021 Apr 11]. Available from: https://scholar.uwindsor.ca/etd/6943.

Council of Science Editors:

Derouin A. Muscle contributions to knee joint stability: Effects of ACL injury and knee brace use. [Masters Thesis]. University of Windsor; 2006. Available from: https://scholar.uwindsor.ca/etd/6943

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