The Effect of Frequency Change on Elbow Joint Motion Change under Loaded Conditions for Upper-Limb Perception-Assist

A human's motion can he changed from the intended motion by giving vibration stimulation on human body. In our previous study, it is shown that the amount of human motion change can he controlled by using frequency change of vibration stimulation. In order to realize a perception-assist for elderly and/or physically handicapped persons with vibration stimulation, it is important that the amount of motion change can be changed even under loaded condition. In this study, the effect of loaded conditions on elbow joint to elbow joint extension motion change was experimentally investigated with several frequency of vibration stimulation. The results of the experiments show that the amount of motion change in elbow joint extension motion can be increased with increase of frequency even though vibrated body parts is under loaded condition.