The purpose of this study is to systematically compare different combinations of mechanical prosthetic knee joint and foot-ankle components to determine how walking and standing performance are affected in transfemoral prosthesis users. This project will involve a collaborative effort between Northwestern University and the Jesse Brown VA Medical Center. For the first aim, we will perform computer simulations of the transfemoral prosthesis configurations with the different combinations of prosthetic knee and ankle components to determine how swing phase foot clearance is affected and stance phase stability of the prosthetic knee joint is influenced. For the second aim, we will perform quantitative gait analyses on subjects walking on level ground, stairs and slopes with polycentric and single-axis knees, and hydraulic and solid foot-ankle components. Finally, for the third aim, the standing balance of subjects will be evaluated using a series of tests that measure upright balance during quiet standing and stability following balance perturbation. This project will require four years to complete.
|Effective start/end date||9/1/19 → 8/31/23|
- U.S. Army Medical Research and Materiel Command (W81XWH1910447)