能有效地运用跳板和横马使重心达到和维持完成跳马所需要的速度，并且在第二次腾空需要的0.08秒内充分地完成复杂的腾空旋转动作。
They can use the board and side horse effectively, make center of gravity, reach and maintain speed needed in the vaulting, and complete the flight movement in 0.08 seconds.
撒手腾空阶段靠摆动，第二周空翻靠内力。
The flight phase with releasing grip depends on swing and the second aerial depends on the internal force.
文章指出第二跳落地前大腿积极下压、腾空中摆动腿两次挥摆都能提高其效果。
The article points out that before falling to the ground in the step, actively pressing down thighs and swinging thighs for two times in the air can improve results of competitions.
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