Hack Squat (Barbell)
Also called Barbell Hack Squat, BB Hack Squat
How to do it
Stand with a barbell on the floor behind your legs and squat down to grip it with both hands. Brace your trunk and drive through your feet to stand while keeping the bar close behind your legs, then bend your hips and knees to lower it under control to the floor. Keep your chest lifted and spine neutral throughout.