Abstract
EMG measured from the skin surface is widely used as an information source to determine various types of body movements and there are many research results using forearm EMG to detect hand motions. In this filed, detected results are used in order to control some equipments like as an artifical hand. However most of them only can detect hand motions and cannot detect musucle power for each motion. If the power that is generated from musucle is able to be estimated by measured EMG, estimated results will be useful to control equipments. In this paper, we talk about our developed method that can estimate muscle power of pronation of hand and movement outside times of hand.