Push up off stability ball exercise is a great variation in pushups exercises that increase both the intensity and benefits of the workout. Regular pushups exercise targets arms, shoulders and chest specifically while pushups on stability ball engage core abdominal muscles positively. Stability ball is a superb tool to add variety and intensity in your exercise routines to make them more interesting and beneficial. Push up off stability ball is more challenging workout as you have to keep you stable and balanced throughout the workout. It increases your focus, coordination and balance also along with the strength and muscle building.