Kinematics Parameters of Chinese Outstanding Women Long Jumpers' Take-off Technique

Depending on literature material,video analysis and mathematical statistics,the paper conducts a kinematics research on Chinese outstanding women long jumpers' take-off techniques,with the results showing that: such long jumpers' absolute velocity is lower than that of the world elite ones.Chinese long jumpers indicate better flexibility in their takeoff,and their touchdown angle and pedaling and stretching angle at the takeoff are ideal.However,their sector angle is not so desirable.Their instantaneous horizontal velocity is significantly different from that of the world outstanding ones,with no obvious difference in vertical speed and take-off angle.In addition,their take-off angle does not work well with the initial speed of takeoff.