Motion Analysis of Human Upper Extremity Considering Volustary Muscle Contraction

The studies of man-machine interface and human dynamics 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 activity properties during static and dynamic conditions were proposed. Secondly, human upper extremity model with muscular system was built and simulatied by using multi body dynamics analysis software, MADYMO. The muscular systems are based on Hill's characteristic equation. They generate the motion of the upper extremity with muscular contraction considering active state of muscles. Lastly, the validity of the model and the way of approach were confirmed.