Load a barbell and roll it against your shins. Hinge at your hips and knees and grab the bar with an overhand grip, your hands just beyond shoulder width. Keep your back neutral spine with your head facing the floor. You should feel your hamstrings switched on as they are the driving force of the movement.
Keeping your lower back naturally arched, pull your torso up and thrust your hips forward as you stand up with the barbell. As you lift the bar, keep it as close to your body as possible. Lower the bar to the floor. That’s 1 rep.