The Velocity's Rhythm Of The Techniques Of Shot Put By Jiangsu Excellent Women Shot Putters

The objects of the study are those 6 athletes who had good and steady grades above 15.00m in the pre-contest evaluation during the 9th National Sport Meeting once held in Nantong in 2001. The article researches into the velocity rhythm of the skills of shot-putting ,setting about the velocity rhythm. Research shows that (1) At the gliding stage,the problem is that the vertical speed of the swing leg is too fast and,which have an influence on the speed of the horizontal movement of body barycenter and the shot. Compared to Chinese elite athletes,the shot velocity of Jiangsu's athletes descends too much at the ending of gliding. (2) At the transitional stage,the speed of body barycenter and the shot descend too much,and the transitional time is obviously too long. (3) At the ending stage ,the working diatance of shot putting is shortened and the athletes of Jiangsu specially exert but not prominently enough and whip the shot with upper limbs too early. (4) As for the whole velocity rhythm of complete skills of putting shot,the body barycenter of Jiangsu's athletes isn't stable and the transitional time is too long,which goes against the skills of fast shot putting encouged in China,whose core is velocity.