Firm the shoulder blades against your back and lift them toward the tailbone so the front torso stays as long as possible.

固定肩胛骨在背部并向尾骨的方向提起它们，这样躯干前侧尽可能保持长。

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Firm the shoulder blades against your back and lift them toward the tailbone so the front torso stays as long as possible.

固定肩胛骨在背部并向尾骨的方向提起它们，这样躯干前侧尽可能保持长。

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