Chest

By doing push ups on an elevated surface you can build strength in the chest, shoulders and triceps and learn proper form in the standard military style push up. Also, there is far more core activation when the body is straight than compared to doing push ups with knees on floor. read more...
By lying on a stability ball for this exercise, you not only activate the stabilizers in the abdominals, but also in the shoulders. I prefer to have client do flyes on the ball instead of a bench because you allow the shoulder blades to come together more easily at the bottom of the motion allowing for a more natural range in the shoulders. Take care to lower weights slowly when arcing motion to side of body. read more...
The push up is actually for the chest, triceps and shoulders. When done on a stability ball, you greatly increase the amount of muscles used to include the biceps, rotator cuff, and deep abdominal wall which all aid in stabilization. read more...