Motion Analysis of Human Lower Extremity Considering Voluntary Muscle Contraction

Abstract

The studies of man-machine interface have been researched in many technical fields. This paper presents the way of building human models with considering voluntary muscle contraction. Firstly, methods for evaluating muscular properties during static and dynamic conditions are proposed, and rations of muscular activity of dynamic load to static load are introduced. Secondly, human lower extremity model with muscular system is built and simulated by using multi body dynamics analysis software. The muscular systems based on Hill's characteristic equation that generate the knee extension and flexion with muscular contraction with considering active state of muscle. Lastly, the validity of the model and the way of approach are discussed.