Women's Single Skating Foreign Comparative Study Of Joint Rotation

Rotation of figure skating action in the Beijing Olympic Games played an important score, is a key factor in winning a game. In recent years, the women's singles figure skating technical level some progress, but elite athletes compared with foreign technology in the rotation, there are still large gaps, especially in the interface between the joint rotation in elite athletes compared with foreign technology gap between the larger Therefore, movements of figure skating joint rotation is significant, the paper selected in 2009 Cup of China figure skating Grand Prix six outstanding athletes, first level of calibration and measurement of venues, and then select the effective joint rotating the main action, use SIMI—motion video analysis software systems analysis and processing, combined with professional knowledge of figure skating, figure skating combined rotary movement on the comparative analysis and concluded1, In the joint rotation speed and level of skiing speed plays an important role and affect the speed and stability of the entire rotation.2, In the joint rotation, the rotation angular velocity is directly determines the number of weeks an important factor.3, In the joint rotation radius of the expansion, affecting the spin angular momentum, another major factor, swing leg ankle affect the rotation radius of the effective use of a major expansion.4, Joint rotation in the stability of the joint rotation center of the core technology, the focus of change in our athletes a little better than the foreign athletes steady, but slow, no bonus points.5, In the hip joint rotation in the stability for the rotation play an important role, which largely affect the changes in the body center of gravity and stability, strengthening of hip joint development effort in order to control, is to ensure the quality of co-rotating action an important factor.6,The supporting leg in the knee joint rotation in a reasonable change, not only the stability of rotation to provide the necessary conditions for completion of an action potential greater accumulation, so further increase the speed of rotation.