Stand facing away from a rack with a long resistance band resting across your hips secured on either side of you using rack hooks. Grip a barbell firmly in both hands and stand with your feet slightly wider than shoulder width. Step away from the rack to ensure sufficien tension on the band. With a slight bend in your knee, slowly hinge your hips back, inhaling as you do so and keeping a neutral spine. Keep your arms extended and the barbell close to the body. When your hips have hinged as much as possible, proceed to reverse the movement. Drive your hips forward with force against the band's resistance, squeezing your glutes and hamstrings as you do so and exhaling. Pause for a count of one at the top, keeping your glutes tensed. Repeat.