ANALYSIS AND SIMULATION OF HUMAN DYNAMICS IN FIGURE SKATING SPORTS

Abstract

Based on the theory of multi-rigid body systems, a dynamic analysis model is established for human bones. For each joint in the human skeletal model, corresponding to the rotation joint, universal joint, and ball joint in the rigid body system, they are characterized to have single, double, and three degrees of freedom, respectively. Furthermore, the rotational changes between each joint are represented by the directional cosine matrix. The relationship is given between displacement and the bone center of mass. During the experiment, figure skaters were selected as the test subjects and waltz jumps were used as the test movements. Based on the human skeletal dynamics model, the angle change curves of the left hip joint, knee joint, and ankle joint were obtained, and a comparison with the standard action was formed. The conclusion shows that the proposed human body dynamics analysis method can assist in the scientific training of figure skating.