Place the bar on your back and step out away from any obstacles that might get in the way of this exercise. Start out with both feet together. Step directly to the side with one leg keeping the other planted. As you reach out with your moving leg, step and descend as far as you can keeping your opposite foot firmly planted and heel on the ground. Also the leg that is used to descend, the foot and heel must also be firmly planted as you push back up to the starting point.