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.
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