PROBLEM TO BE SOLVED: To provide an electrostimulator capable of establishing compatibility between fixation of a joint and suppression of muscular weakness.SOLUTION: An electrostimulator includes a supporter 20 for being attached to a region of the human body including a joint straddling muscle straddling a joint. The supporter 20 is provided with a plurality of electrode parts 31-33 for passing electric current through the joint straddling muscle. The electrode parts 31-33 are provided in positions corresponding to the joint straddling muscles of the thigh 60 and the lower leg 70, respectively.COPYRIGHT: (C)2014,JPO&INPIT【課題】関節の固定と筋力の低下の抑制とを両立することのできる電気刺激装置を提供する。【解決手段】この電気刺激装置は、関節を跨ぐ筋肉である関節跨坐筋を含む人体の部位に装着するためのサポータ20を含む。サポータ20には関節跨坐筋に電流を流すための複数の電極部31~33が設けられている。各電極部31~33はそれぞれ、大腿60および下腿70の関節跨坐筋に対応する位置に設けられている。【選択図】図4