<font size="2">股二頭or大腿後肌群伸展(hamstring stretch) </font><table cellspacing="1" cellpadding="1" width="85%" align="center" border="0"><tbody><tr><td valign="middle"><p class="main" align="center"><font size="2"><img height="170" src="http://www.training.idv.tw/nfi/stretching/stretching_pic/hamstringstretchmuscle2.gif" width="220" /></font></p></td></tr></tbody></table><!-- more -->