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Lower Extremity Prostheses Related Biomechanics, Valeria Chiu, Ming-Chuan Lin

Rehabilitation Practice and Science

During heel strike, a prosthetic foot must perform ground-reaction force shock absorption, and thereafter, must provide control of the smooth-rhythm plantar flexion movement. During the midstance phase, the foot must provide the controlled advancement of the tibia. During the terminal stance, the anterior part of the foot must act as a hard rocker to provide progression and roll over the toe and to allow center of gravity switching to the opposite site as the tibia advances. The biomechanics of the four-bar linkage knee simulates the motion of the actual human knee joint. It can be discussed by analyzed by five …