The first purpose of this study considers the degree of burden and degree of fatigue for each muscle by angular momentum of around the lower limb joints during running of the people. This angular momentum of the each muscle represents the severity of muscular exercise. The angular momentum of each muscle worked to produce the driving rotation power around joints. At last, for the final purpose of this study we verify the usability and value of the proposed method from those consideration results. In this case, the muscle mathematics model of the 3D frame model of the lower limbs that was used for inverse dynamics analysis and inverse kinematics analysis is Hill type model. In the future, the usability of the proposed method is verified by comparing with conventional method for evaluating the degree of burden and degree of fatigue for each muscle of muscle activity.