练习变化：以手掌依傍身体伸直你的双臂向上面对和向地板的你的肩的前面。
Exercise variation: Extend your arms alongside the body with the palms facing upward and the fronts of your shoulders toward the floor.
身体俯卧于球体之上，动作如图所示。背部保持正直或保持自然弯曲状态，腿部伸直。
Lean on the ball as shown, keep the back flat or maintain its natural curve, with the legs straight.
首先，将手臂伸直，使你的整个身体悬挂在一个休息位上以便体会踩点的方式。
Silent Feet Frontstep Method: First, straighten your arms, hanging in a rest position on your skeleton to survey your foothold options.
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