Start: Grab the barbell with an overhand, shoulder-width grip, and stand holding it at arm's length in front of your thighs. Set your feet shoulder-width apart with a very slight bend in your knees. Pull your shoulders back.
Finish: Bend over at the hips to lower the bar down your legs, toward the floor. Stop when your torso is parallel to the floor or when you can't go lower without rounding your back. Pause, then push down with your heels to return to the starting position. Keep your knees bent at the same angle and your shoulder blades pulled back throughout.
If your balance is good, increase the challenge by lifting your dominant foot a few inches off the floor and keeping it there as you do the movement with your nondominant leg. Finish the set with that side, then repeat with the other.