Research On Kinematics Of The Final Push Technology In The Twelfth National Games Male's Shot Put Athletes

Shot is a relatively complex movement project, its technology including: ball, preparatory, pre swing, sliding, transition, the last effort and shot body balance techniques, which each are interrelated and interdependent, in complete push lead ball technology process, each technology are coordinated, coherent, reach the shot before the optimum conditions, to obtain the effect of final exertion, create the excellent sport achievement. Therefore, in addition to athletes physical factors necessary, reasonable and effective exercise less essential technology. This study using literature data method, image analysis, mathematical statistics and comparative analysis method and other research methods to the 12th National Games men's shot put before 8 athletes in the last exertion of kinematic study of comprehensive, systematic, in-depth study of the 12th National Games men's shot put athletes inherent law and essential characteristics of the last exertion and kinematic quantitative analysis by means of the athlete's final push technology, to reveal the internal rule of their final push technology, to further clarify the advantages and disadvantages of the 12th National Games men's shot put athletes in the last exertion technology, so as to provide some technical parameters for the coaches.The results show:(1) before the 12th National Games men's shot put eight athletes in the last exertion acceleration for action of technology is reasonable, can form a reasonable exertion sequence.(2) before the 12th National Games men's shot put eight athletes in the last exertion acceleration for stage, the left leg support is not ideal, the braking effect is not good, can not form a strong support, is not conducive to the transmission of force, the impact of the superposition of shot velocity.(3) before the 12th National Games men's shot put eight players shot running distance is short, is not conducive to the shot to obtain greater acceleration.(4) before the 12th National Games men's shot put eight athletes and excellent athletes in the world in the final thrust phase velocity of shot with the velocity of body gravity difference is too small, so that the influence of the "ball" system of stack velocity, affected the shot the last shot speed.(5) shot putter in the acceleration phase of the final exertion, the body's center of gravity height difference and the results of shot putting has a certain relationship; the shots in the instant release speed are the key factors to determine results, release angle with the shot velocity changes vary, shot height in terms of shot put athletes, basically in a steady state.Propose corresponding suggestions and Countermeasures for China Men's shot put athletes in the last exertion technology, its purpose is to further improve China Men's shot put athlete's final push technology, efforts to change the backwardness of Chinese men's shot put event.