Have you ever tried to pat the top of your head and rub your stomach at the same time? This exercise is like that, only harder!
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1-Arm Plank on Exercise Ball
This exercise has got many things going for it all at the same time. For starters, you have have to keep your back and your butt in a parallel line with your shoulders. If you don't, then you are just resting on the ball, which is not very difficult. Second, by keeping a nice straight line in your back, you will be exercising your abs, lower back, and side abdominal muscles just to keep you from swaying horizontally or vertically on the ball. Third, your "non-working" hand will get a great workout by not locking your elbow while you hold yourself up. Then, after all that, you will start to exercise the non-working shoulder while at the same time putting the rest of those muscles to the test as you try to maintain your position on the ball throughout the entire exercise. Muscular multi-tasking at its finest! You can hold onto any weighted object with your working hand – dumbbell, medicine ball, soup can – whatever!
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