This paper is concerned with instrument design to measure muscle function for multi-joint. The existing instrument measuring muscle function was able to measure muscle function by single joint motion. but The routine movement of a human being is a multi-joint motion exercise.
Recently, the population of elderly people is rapidly increasing. As people get older, muscle function is degenerated. Elderly people need proper exercise regimen to cope with degenerated muscular function. To measure the degenerated muscular function of the elderly, a multi-joint measuring instrument is required rather than a single-joint measuring instrument.
Therefore, it is necessary to develop a device to measure the muscle function of multi-joints.