Get on the Ball

The stability ball will engage your core and amplify the results you get from chest exercises. Its important to work the chest muscles when sculpting the arms to create stability for the shoulder joint. Try the singlearm chest fly on the ball: Start youre your shoulders on the ball, hips lifted, and both hands over your chest holding light weights. Slowly lower one arm extended to the side, pause, and return to center. Perform 15 repetitions on each arm.