Abstract
Biomedical signals, such as electromyography(EMG)signals, are utilized for the human-machine interface. The purpose of this study is to control the myoelectric prosthetic hand that can grasp various objects stably. The EMG signals of the muscles of shoulder periphery were recorded with 1000Hz sampling by 10 healthy men who performed movements of the each instrumentation movement in a 70% contraction. The integrated EMG (iEMG) and mean power frequency (MPF) were calculated from the start of the recorded results. The iEMG and MPF gradually decreased from the start of the movement. So, the difference values of iEMg and MPF between the start and the end of the movements were calculated. In the movement, The significant difference did not occur in iEMQ, and the difference value of MPF in the Lnfra-spinatus was smaller than that in the Deltoid, acomial part.
