but the duration is way too short



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送交者: 匆匆过客 于 2006-4-24, 18:34:58:

回答: 对心脏瞬间的STRESS举哑铃未必小 由 HunHunSheng 于 2006-4-24, 18:05:11:

to cause much harm. but of cause there are always exceptions. that's also why heart muscles doesn't get enough exercise by 举哑铃.

however i think it can cause strokes.



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