An isolation barbell exercise intended to strengthen the lower back.
Start with your feet a few inches apart holding a barbell across your back, similar to the manner of holding a barbell for squats. It must rest on the upper traps.
With your legs locked and your back aligned and straight, bend forward at the waist until the upper body is parallel with the floor. Maintain this position for a few seconds, contracting the abdominals and the lower back. Then return to the starting stance.