Ball Floor Bridge
Lie on your back resting your head on the floor. Make sure your head, shoulders, and lower back are all touching the floor. Place your feet flat on a stability ball. Brace your abdominal muscles and press down on the ball with your feet and up with your hips. Raise your hips until they form a straight line with your knees and shoulders. Slowly lower your hips about 2 inches from the floor and repeat. Exercise description and photo by Michael Diebler.