Exercise to tighten abs and mark

This exercise is a favorite of all time. This classic is known as the scorpion or crunch. The work is primarily the muscles of the abdomen or stomach.

Start position: Lie on your back with your legs bent and slightly away from your body. Place hands behind your head, but only as a position. This is not a support.

Movement: Lift the body, focusing on the abs, not the neck or legs. This should do with your stomach down, and trying not to arch the back. Think of it as if to hit the navel to the floor. After returning to the starting position without losing the position, all you have to do is breathe.

Recommendation: When you breathe and in the contraction (or in raised position) to breathe through the mouth, and when you return to the starting position, breathe through the nostrils.