Movement:
Lie supine (on your back) on the floor with your feet together.Place your hands alongside your body, with your palms flat on the floor or hold onto a piece of stabilized equipment. Lift your legs a little off the floor and keep your knees bent at a 90 degrees angle.
Exhale as you flex your abdomen and curl your hips off the floor. Try to hold the contracted position for few seconds as you get stronger. Inhale as you relax your abdomen and lower your hips to the starting position in a controlled manner.