This week's workout comes from Alex Rothstein at Synergy Fitness. This move targets your lower body. Alex demonstrates the proper form for a squat, and how to use the medicine ball as a counter balance to it.

To start sit your hips back, not down, and push the ball forward. In this squat, you want to sit very low to the ground. If you want to add intensity or variety, when you come up, bring the ball to your chest and then up over your head.