This paper describes a newly developed computer simulator for human walking with hip disarticulation prosthesis based on neuro-musculo-skeletal model of human body and mechanical model of hip prosthesis. This simulator is able to generate three-dimensional walking motions of an entire body wearing a hip prosthesis. It is shown that the simulated characteristics of a walking movement for a lower lumber joint, a normal foot joint and a prosthesis leg are qualitatively similar to the walking patterns when using a real hip prosthesis. This suggests that this simulator may compute the movement of a human body and the behavior of a hip prosthesis, including the interaction between them. Therefore, the developed simulator may contribute to development and design for hip disarticulation prostheses.
