1. This can be high or low impact. Stand on the ball and take left foot diagonally behind you, punching left arm across the body. Bring the foot back and switch legs.
2. For high impact, begin with your foot on top, other foot lunging back. Jump up and switch so that the other food lands in the middle of the BOSU and the other foot lunges.
3. Repeat for desired repetitions.
Keeping the intensity going try this one on for size.
