PROBLEM TO BE SOLVED: To provide a lower limb muscular strength measuring system which can remarkably cut the measurement time compared to the conventional method in which a relation between each muscle group strength and output at the tip of the lower limb is analyzed based on a notion of cosine tuning and it is essential to complete a hexagonal output distribution map through a new output distribution drawing method which exposes inclination of each side of the output distribution.SOLUTION: Two muscle group strengths are the greatest in each side in an output distribution in the functionally effective muscle theory, but a muscle group strength is the largest because sum of squares of the muscular strength becomes the smallest in an output distribution of the cosine tuning. Just one side of the output distribution is measured and the muscular strength of the corresponding muscle group is derived by using the characteristics.SELECTED DRAWING: Figure 5【課題】コサイン調律の考え方を基に各筋群力と下肢先端での出力との関係を解析し、出力分布の各辺の傾きを明らかにする新たな出力分布描画手法により、６角形出力分布図を完成させることが必須であった従来法に比べ、大幅に計測時間を短縮できる下肢筋力測定システムを提供する。【解決手段】機能別実効筋理論では出力分布の各辺において２つの筋群力が最大となるが、コサイン調律の出力分布においては筋力二乗和が最小となるため、１つの筋群力が最大となる特徴を有している。本特徴を利用して、出力分布の１辺の計測のみから対応する筋群の筋力を導出する。【選択図】図５
