我在健身房见过一个七十岁左右的老人在跑步机上倒着走，坡度大概12%的样子。看着就紧张。

来源: 资深海豚于 2025-12-05 18:36:07 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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