swimming is good for burning calories, around 500cal/hour

来源: DuedayDEC23 于 2012-07-25 11:49:49 [] [博客] [旧帖] [给我悄悄话] 阅读数 : 0 (105 bytes)

much higher than other sports,but you can't do it all the time since it doesn't help build muscle.

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