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Start with your back flat on the floor, feet hip width apart and centered on the BOSU.Push down into the BOSU with your feet lifting your hips up high. You will feel your hamstrings working. Hold this position for 30-60 seconds. Do not lift your shoulders or neck off the floor and keep your upper back flat. Lower the hips back down until your bottom is just off the floor, then push down on the BOSU again.
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