As for the muscle synergy analytical device (1), the muscle competition ratio calculation section which calculates the muscle competition ratio of level of the muscle telegraphic number of the muscle pair which competes from the muscle telegraphic number which is detected the muscle electric meter which detects the muscle telegraphic number which it occurs in each muscle in the muscle pair group where the motion specified region of the human body competes (10) with, the muscle electric meter (10) by during specified exercising of the human body as the time-series data (202) with, doing multivariate analysis the muscle competition ratio in each time of the time-series data as a variable, at least the 1st contribution of correlation is high main componentThe 1st main component analytical section which calculates the main component which it includes (203) with it had. Because of this, the specific muscle synergy which is something related to muscle cooperation in every specified motion of the inspection body profit, at the same time doing multivariate analysis, the motion evaluation by the main component of little type possible it makes.筋シナジー解析装置(1)は、人体の運動所定部位の拮抗する筋ペア群における各筋に生じる筋電信号を検出する筋電計(10)と、人体の所定の運動中に筋電計(10)によって検出された筋電信号から拮抗する筋ペアの筋電信号のレベルの筋拮抗比を時系列データとして算出する筋拮抗比算出部(202)と、時系列データの各時刻における筋拮抗比を変数として多変量解析を行って相関の寄与度の高い少なくとも第1主成分を含む主成分を算出する第1の主成分解析部(203)とを備えた。これにより、検体の所定の運動毎における筋協調の関係である固有の筋シナジーを得、かつ多変量解析を行って、少ない種類の主成分による運動評価を可能にする。
