PROBLEM TO BE SOLVED: To provide an electrical muscle stimulation apparatus realizing electrical muscle stimulation with which a user feels less pain.SOLUTION: An electrical muscle stimulation apparatus 1 comprises: a stimulation control unit 53 which causes two or more first electrodes included in a plurality of electrodes 20 to output electrical stimulation to a user a contact state detection unit 54 which detects a change in a contact state of each of the plurality of electrodes with the users skin, based on at least one of a contact impedance of each of the plurality of electrodes, a pressure of each of the plurality of electrodes against the users skin, a distortion of the users posture, and an acceleration between each of the plurality of electrodes and the users skin while electric stimulation is output an electrical pattern determination unit 51 which determines second electrodes based on electrodes for which a change in contact state has not been detected and a stimulation electrode switchover unit 52 which performs switchover between first electrodes and second electrodes. The stimulation control unit 53 causes the second electrodes to output electrical stimulation to the user.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2018,JPO&INPIT【課題】ユーザが痛みを感じにくい筋電気刺激を実現することができる筋電気刺激装置を提供する。【解決手段】筋電気刺激装置1は、複数の電極20に含まれる2つ以上の第1の電極に、ユーザに対して電気刺激を出力させる刺激制御部53と、電気刺激が出力されているときにおける、複数の電極のそれぞれとユーザの皮膚との接触インピーダンス、複数の電極のそれぞれとユーザの皮膚との圧力、ユーザの姿勢の歪みおよび複数の電極のそれぞれとユーザの皮膚との加速度の少なくともいずれかに基づいて、複数の電極のそれぞれとユーザの皮膚との接触状態の変化を判定する接触状態判定部54と、接触状態の変化がない電極に基づいて第2の電極を決定する電極パターン決定部51と、第1の電極を、第2の電極に切り替える刺激電極切替部52とを備え、刺激制御部53は、第2の電極に、再度ユーザに対して電気刺激を出力させる。【選択図】図6
