Here is a tough one for the chest muscles. The stability ball push-up requires an advanced level of upper body fitness. What makes this exercise difficult is the fact that you have to use just about all of the upper body muscles in order to maintain balance on an unstable surface.

Begin by placing your hands on the ball about shoulder width apart. During this exercise, be sure to keep your back perfectly straight. Once in position, slowly lower your upper body until the chest touches the ball. Slowly push up to the starting position. You should exhale as you push up.