The Effect of Prosthetic Foot-Ankle Stiffness on Rollover Shape Radius and Peak Ankle Power in Individuals with a Unilateral Transfemoral Amputation

In the prosthetic foot-ankle complex, the stiffness of the componentry used has implications for gait efficiency and standing stability. This is of particular importance for users of transfemoral prostheses, as changes to foot-ankle stiffness affect the orientation of ground reaction forces during stance and prosthetic knee stability. The purpose of this study was to determine the effects of prosthetic foot-ankle stiffness on transfemoral prosthesis users during gait at varying speeds.