In this paper,using the method of literature,experiment,video analytic method,the Shanghai team freestyle national athletes and level athletes(6)start crouched track start test,starting from the Angle of kinematics and dynamics of the entire swimming technical characteristics were revealed,comparison and analysis to find out the difference for the coaches to athletes in the future of technology improvement to offer help,determine the target for training.And put the test team of 15 m starting performance and technology related indexes correlation discussion,find out the related indexes to make the coaches start technology training more targeted,for the Shanghai team set off in the future results give some reference to improve standards.This article research results were as follows:1、Swimming team level athletes in Shanghai after preliminary pose than athletes of athletes,after knee joint Angle is small,of cause from time to connect with the action time to slow down,in addition reaction was slower than athletes athletes,and has the difference.2 、 Athletes from platform the athletes’ level of athletes from the machine body posture more stretch,more inclined to the front,front knee Angle Angle is small,lead to difference in horizontal force and speed.Secondly this phase also includes three sections,followed by reaction time-from the moment,hand from platform-from the moment,the hind legs from platform-fore legs from the moment,the reaction time-from one moment and hand from platform-back from moment stage is particularly important,the athletes need to stage strengthen improvement.3、Into the water phase Shanghai team level and athletes athletes enter the water movement difference is not big,but has the difference in time and speed into the water.4、Glide phase athletes of different levels in the motion of underwater without too big difference,on the effect of body position and kick,the second athlete athletes in a fast,swam into the distance is longer,kick the number is more,compared with the level of athletes have difference.5、Water phase Shanghai team athletes compared to the level of athletes distance and time is longer,water production and has the difference.6、Shanghai team athletes from platform,into the water phase and glide phase and water phase in the presence of high relevance index,which had the greatest influence from platform and underwater stage,and from the platform stage affect into the water and underwater glide phase affecting the water,so the Shanghai team more in the future to the focus of the two stage for training.7、Shanghai team athletes should complement each other,each other and with the world’s best swimmer from platform time,away from the stage horizontal velocity and the nozzle diameter,there is still a gap,need to be further improved,closer to the world level. |