大家在查：用力动作球性分组练习最后用力出手角度摆速出手初速度出手高度投掷实心球引力不稳定性

身体形成

身体形成

身体形成

身体形成

1

Direct that pressure toward the heart muscle with just the right intensity , and it causes the body to produce new blood vessels .

将那种压力以适当的强度导向心脏肌肉，就可以使身体形成新的血管。

2

A spear-like position should be achieved by placing as much emphasis as possible on streamlining in the air .

在空中，要尽可能多地强调身体的流线型，使身体形成像标枪一样的身体姿势。

3

Keeping your elbow under your shoulder , push yourself up until your body is in a straight line .

以肘部力量支撑肩部，身体向上用力，使身体形成一条直线。

4

Relax your arms and let them swing naturally , close to your body at a 90-degree angle when you walk .

放松双臂，自然摆动，步行的时候双臂贴紧身体，与身体形成 90 度。

6

Engage your abs and lift both legs until your body forms a straight line .

运动腹肌，将双腿抬起直到你的身体形成一条直线。

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