Abstract
It is thought that inverse dynamics analysis is the most comprehensive method to obtain the joint reaction forces and the joint moments during gait for refining rehabilitation program of trans-femoral amputees. However, this method is highly constrained in respect to modeling of trans-femoral prosthesis and procedure of numerical computation. Alternatively, a multi-axis force/moment sensor can be used to directly measure loads applied on the middle part of trans-femoral prosthesis In this paper, loads applied on a prosthetic knee joint and lower thigh of trans-femoral prosthesis measured directly are compared with ones calculated by inverse dynamics analysis during gait. As a result of the experiments and intercomparison, comprehensive agreement between inverse dynamics analysis and direct measurement in the behaviors is obtained. Therefore, the validity of inverse dynamics analysis and the effectiveness of the developed prosthetic gait training system to consider biomechanics and comprehensive physical phenomena for trans-femoral prosthetic gait are validated.
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