仰臥起坐姿勢如何才是正確的 - 仰臥起坐

By Oliver
at 2006-05-14T00:00
at 2006-05-14T00:00
Table of Contents
仰臥起坐的姿勢有些人是抱頭而有些人是抱著胸部到底這兩個的差別在哪哪一個正確= =?有什麼科學根據呢
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仰臥起坐
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By Edwina
at 2006-05-16T13:30
at 2006-05-16T13:30

By Frederica
at 2006-05-14T03:29
at 2006-05-14T03:29
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