会不会和肌肉密度有关，相对概念就是体脂。GYM后肌肉紧致，跑步时各部位也更容易受力，就容易感觉轻松和愉悦。

来源: 尤其开心USA 于 2024-03-25 22:30:14 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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