Comparative Study on Discus Throwing Technique between Domestic Women Elite Discus Thrower and Overseas

This paper makes a direct comparison of kinematic features of discus throwing technique between domestic women elite discus thrower and overseas.The results are as follows:1) the two domestic athlete's release velocity does not have disadvantages,however,the optimizing combination of release velocity,release angle and release height is not as good as the overseas elite athletes;2) the time spent on the first single and second double support phase is both relatively short to LI Yan-feng,so is the time spent on the first single support phase to TAN Jian;3) the discus velocity is increased much in the second single support phase,and increased less in the second double support phase,that are not good to get larger release velocity for the two domestic athletes;4) fewer decrement of the two domestic athlete's center of gravity(CG) velocity in the second double support phase,to some extent,means that the energy transfer efficiency in body-discus system is lower.This may be due to their fewer decrement of CG velocity in the first double support phase;5) discus distance of the two domestic athletes in the first double support and air phase are much larger,which they have a characteristic of swaying discus in a large range;6) much larger translational motion range of overseas elite athletes,especially in the two double support phase,is beneficial to increase the CG velocity in the first single support phase,and make sufficient preparation for final explosive action in the second double support phase.