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Title: Influence of Prosthetic Sagittal Alignment on Trans-Tibial Amputee Gait and Compensating Pattern : a Case Study
Authors: Jia, X
Wang, R
Zhang, M 
Li, X
Keywords: Interface pressure
Knee joint moment
Phase symmetry index
Prosthetic alignment
Trans-tibial amputee
Issue Date: 2008
Publisher: Tsinghua University
Source: Tsinghua science and technology (清华大学学报自然科学版) (英文版), 2008, v. 13, no. 5, p. 581-586 How to cite?
Journal: Tsinghua science and technology (清华大学学报自然科学版) (英文版) 
Abstract: This study relates the gait asymmetry, residual limb comfort, and energy cost during walking and identifies a compensating pattern for the trans-tibial amputees when the prostheses are misaligned. One male subject with a trans-tibial amputation volunteered for the study. The knee joint moments at the prosthetic side, the phase symmetry index, and the interface pressures were discussed under three sagittal alignment settings. The results show that the subject changes the knee joint moment, gait symmetry, and interface pressure with a misaligned prosthesis to improve his comfort and movement during walking. A high-quality liner reduces the gait sensitivity to misalignment and enhances the amputee's ability to compensate for misalignment. Since different people have different compensation patterns, more cases will be studied in future work.
ISSN: 1007-0214
DOI: 10.1016/S1007-0214(08)70092-0
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