Stand with feet shoulder-width apart and grip a barbell positioned behind your legs with palms facing back. Brace your core and lower into a squat by bending at the hips and knees while keeping your torso upright. Push through your heels to extend your legs and return to standing, maintaining control throughout the movement to engage the quads, glutes, and hamstrings.
Log your barbell hack squat sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.