Sit or stand on the lever linear hack squat machine with your back supported and feet placed about shoulder-width apart on the platform. Push through your heels to extend your legs, keeping your torso upright and core braced. Lower yourself by bending at the knees and hips until your thighs are near parallel to the platform, then drive back up to the start in a controlled motion.
Log your lever linear hack squat sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.