老人關節部位新陳代謝減慢，跑步衝擊力大，膝蓋磨損入不敷出，當然有問題。什麽歲數幹什麽事，不可一概而論

來源: 吃素的狼於 2014-01-21 23:10:05 [舊帖] [給我悄悄話] 本文已被閱讀：次

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