Abstract
This paper examines the relationship between muscle fatigue and its biomechanical characteristics by using biomechanical impedance. Visco-elasticity was calculated from biomechanical impedance. In our experiment, isometric contraction was applied to a subject's forearm with 10 and 15% of maximum voluntary contraction (MVC) for a certain constant period until one got fatigued. The change of visco-elasticity in unloaded and under contraction was observed, and the change under contraction was not mo notonous at most of the subjects. The magnitude of load affected advancing speed of fatigue but did not the tendency of visco-elasticity.
