A Study on the Acceleration Characteristics of Spinning Throwing Technique of Song,an Excellent Chinese Female Shot Putter
This paper adopts research methods such as literature review,testing and mathematical statistics to select 6 throwing competitions of Song××and study the speed characteristics of Song's spinning throwing technique,in order to provide reference for improving Chinese female athletes'spinning throwing technique.The results show that:(1)the time rhythm of Song's spinning throwing process is stable,but the time rhythm of Song's spinning stage and final exertion stage are not stable.(2)When Song entered the air rotation stage,the speed of the center of gravity of the body was lower than the speed of the instrument,and the compression effect of the left axis was better.(3)At the end of the second single support stage,there was no obvious phenomenon of"delayed instrument speed",the instrument speed fluctuated greatly,and the control of the instrument was unstable.(4)When the left foot lands,the speed of the left shoulder increases rapidly,and the speed of the right shoulder is more stable,which helps stabilize the speed of the instrument.(5)In the first stage of single support,the velocity difference between the two sides of the shoulder joint is large,which is not conducive to the stability of the upper limb.
NETL
NSTL
万方数据
维普
