The contraction of the stability ball is a small

Stability Ball Crunch

The contraction of the stability ball is a small, efficient movement. Lie on the ball with outstretched feet placed firmly on the ground for support. Lean back until the upper body is parallel to the ground. Place your hands behind your head, across his chest, or joining a weight plate on your chest. Crunch the upper abs and raise the torso up. Keep your eyes on ERECTEEN the roof to keep the head aligned to avoid neck strain. Exhale and contract your abs at the top of each rep. Do not pull your head with your hands.

ERECTEEN-!!FREE TRIAL!!SHOCKING SCAM | http://www.hits4slim.com/erecteen.html