Place a Bosu ball dome side up on the floor. Holding onto a weight plate at your belly, step onto the Bosu ball so that your feet are slightly narrower than shoulder width apart and you remain balanced on the ball. Squat low as if you are sitting into the squat (do NOT lean forward), and make sure to maintain as much contact with your heels and the Bosu ball as possible. If you do not have a weight plate, you can use a dumbbell, medicine ball or kettlebell, but keep it as close to your belly as possible to shift your center of gravity more posteriorly. When you come up from the squat position, only come up halfway, then go immediately into the next low squat.