腾空阶段：当运动员在空中移动之时，他的腿先向后摆动，然后迅速向前移动。
The flight phase: As an athlete moves through the air, his leg swings backward and then moves rapidly forward.
在图片“A”你能看手腕向后摆动时， 一部分的球的重量会移向拇指的下部。
In picture "A" above you can see with the wrist bent back that part of the weight of the ball will be resting on the base of the thumb.
同时向前摆动的动作触发了所有其余足肢略微向后一点。
But the act of swinging forward triggers all the other legs to move back a little.
应用推荐