PREPARE: Find a flat wall and place a yoga ball against it knee height. The knee should be pressed against the yoga ball and fully bent. EXERCISE: To begin the motion start by lowering the leg that is holding yourself up. Do your best in keeping the ball against the wall preventing it from falling during the motion. Straighten the standing leg to complete one rep. Note: you may have to lean forward in helping with balance. FREQUENCY: 10 x 10 sec holds on each side