PROBLEM TO BE SOLVED: To provide a muscular active mass measuring device which measures the distribution of the muscular active mass of the inside of the body and the muscular active mass for each of muscles from a surface myogenic potential signal in which the myogenic potential of many muscles overlaps.SOLUTION: Using a surface myogenic potential simulation part, which calculates surface myogenic potential from muscular active mass within a model by the electric conduction simulation model of the body, and a muscular active mass estimation section, which adjusts the muscular active mass within the model so that the difference between the surface myogenic potential simulation value calculated by the surface myogenic potential simulation part and the surface myogenic potential of the body measured by a surface myogenic potential measurement section becomes approximately minimum, a muscular active mass in the simulation model serves as a muscular active mass estimated value within the body when the difference is assumed as the approximate minimum.COPYRIGHT: (C)2011,JPO&INPIT【課題】多数の筋の筋電位が重畳した表面筋電位信号から身体内部の筋活動量の分布や筋ごとの筋活動量を計測する筋活動量計測装置を提供する。【解決手段】身体の電気伝導シミュレーションモデルによりモデル内の筋活動量から表面筋電位を計算する表面筋電位シミュレーション部と、前記表面筋電位シミュレーション部により計算された表面筋電位シミュレーション値と表面筋電位計測部により計測された身体の表面筋電位との差が概最小になるようモデル内の筋活動量を調整する筋活動量推定部とにより、前記の差を概最小としたときの前記シミュレーションモデルの筋活動量を身体内の筋活動量推定値とする。【選択図】図1
