Place a knee-high bench or box in front of a power rack. Load a barbell on the rack with moderate to heavy weight and rest it across your trapezius muscles (top area of back), grasping it with an overhand grip, elbows pointed toward floor. Walk barbell forward from rack until you are about a foot from the box. Place your left foot on the box. This is your starting position. Drive through your glutes, quads, and hamstrings to propel you to the top of the box until both feet are planted on the box and hips are fully extended at the top. Engage your glutes to lower your right foot back to the floor. Quickly return to top of box, powering with your glutes.
