head C.G.acceleration

At the gliding stage,LI Ling angel of thigh and ground is much big,the swing legs vertical speed too high,level speed too smell and the enlarging angel of body gravity; At the transitional stage,the transitional time is long,velocity of body gravity and shot gravity descend;The supporting point of LI Ling is prominent,speed-up effect is striking at the ending movement stage.

结论:李玲在起滑时蹬地角偏大,左腿摆动垂直分速过大,水平分速相对较小,重心腾起角增大;过渡步阶段单支撑时间过长,铅球速度和身体重心速度均呈现下降趋势;最后用力阶段主要加速点(用力点)较为突出,加速效果较显著。

Conclusions: At the gliding stage, Cheng Xiao-yan the swing legs vertical speed too high, level speed too smell and the enlarging angel of body gravity ; At the transitional stage, transitional time is long, velocity of body gravity and shot gravity descend; The supporting point of Cheng Xiao-yan is prominent , speed up effect is striking at the ending movement stage.

结论:程晓燕在起滑时左腿摆动垂直分速过大,水平分速相对较小,重心腾起角增大;过渡步阶段单支撑时间过长,铅球速度和身体重心速度均呈现下降趋势;最后用力阶段主要加速点(用力点)较为突出,加速效果较显著。