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Sit in a low squatting position with the middle of your back on the ball. Your feet should be shoulder width apart and your hands may rest on the ball for balance. Push with the legs and allow your body to move over top of the ball as it rolls slightly backward. Put your hands behind your head to avoid straining your neck. Hold the end position for 5-10 sec. If it is uncomfortable or painful, do not do this exercise. Repeat 3 - 5 times.
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