What Does Clenching Your Abs Do?

  • 9 years ago
What Does Clenching Your Abs Do?. Part of the series: Easy & Effective Exercises. When we clench our abs, it tightens the muscles up, and that, for a short period of time, constricts the blood flow in this area. Find out about clenching your abs and what it does with help from an experienced fitness professional in this free video clip.