Mathematical modelling and field trials of an inexpensive endoskeletal above-knee prosthesis

Abstract

The swing-phase motion of the shank of an above-knee prosthesis has been modelled mathematically. An inexpensive endoskeletal prosthesis was designed using the Jaipur foot and conduit pipes with a hinge joint for the knee. Results of field trials and the modelling indicate that a very simple above-knee prosthesis can give near normal gait at normal walking speeds on flat surfaces. The swing of the shank is most sensitive to the timing of toe-off. © 1992, SAGE Publications. All rights reserved.