Depending on the onwards, it pointed out that the arms swinging have a far-reaching influence on take-off acceleration of the body, moreover, the more acceleration distance of arms swinging, the more final speed of the center of gravity of the body.

• 由此指出，手臂摆动对身体起跳加速力的贡献率很大，并且，手臂加速摆动的距离越长，身体重心速度的增加越明显。