What Is Happening to Your Stomach While Doing Sit-Ups?

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When you execute a proper sit-up, a few important things are happening to your stomach. Find out exactly what is happening to your stomach while doing sit-ups with help from a qualified personal trainer in this free video clip.

Part of the Video Series: Working Out
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Video Transcript

Hi, my name is Eric Quinn. I'm a personal trainer, and we are here in Club Metro, Jersey City, New Jersey. Today we are going to discuss what's happening to your stomach when you are doing crunches. So you want to know what's happening to your stomach when you are doing situps. Actually a lot of things are happening. Your nerves are firing. Your nerves activate your the muscle tissue. Your muscle tissues contract. You get tight in the ab area when you working out that area. But there's a little more then that. Lets start by telling you, that there are four different set of muscles on your abdominal wall. There are the internal and external obliques. And the transversus and rectus abdominis. So as you do an abdominal exercise you are contracting the muscles. And your intestines actually are feeling massage when you do the exercise. In the motion, in the way you move you are contracting the muscle in concentric and eccentric way which is fantastic. You are contracting and relaxing, contracting and relaxing. So those are the things that actually happens when you do a sit-up. When you do a sit-up your abdominal muscles contract as you go up. And it relaxes as you go down. It's a concentric and eccentric move. And your intestines again are getting massaged from the exercise so it's actually excellent for the intestines. They are very happy every time you do crunches or sit-ups. So you should do it. Don't stop doing it.


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