我的理解是肌肉因動作過猛鎖死，跟抽筋有點象。胸廓作為“鎖”，自身並不吃力，吃力的是頸肩肌肉。

來源: 周老大於 2024-02-21 08:36:38 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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