http://www.fitsugar.com/ Healthy, happy you. en http://www.fitsugar.com/1034504 <p>Have you ever been doing push-ups or ab exercises and noticed that your body started to shake? This happens to me when I'm pushing myself or at the end of a set of exercises. Why does it happen?</p> <p><span class="inline left"><img src="http://images.teamsugar.com/files/upl0/1/12981/08_2008/strength.jpg" alt="" title="" class="center image preview" height="204" width="520"></span></p> <p>Basically your muscles shake when they are working hard at something they're not used to doing. Maybe you're lifting a heavier weight, or doing more reps of a certain move. When your muscles begin to quiver, it's because they're grabbing and releasing one another as they lengthen and shorten. Once your muscles become accustomed to doing that exercise or lifting that amount of weight, the trembling will stop.</p> <p>So is it a bad thing? To find out </p> <p><a href="http://www.fitsugar.com/1034504">read more</a></p> http://www.fitsugar.com/1034504#comment shaking muscles Strength Training Tue, 19 Feb 2008 12:30:00 -0800 FitSugar http://www.fitsugar.com/1034504