Barbell hack squat

Start by standing with your feet shoulder-width apart and your toes slightly turned out. Hold the barbell behind your legs, resting it on your upper thighs. Lower your body by bending at the knees and hips, keeping your back straight and your chest up. Continue lowering until your thighs are parallel to the ground, or as low as you can comfortably go. Pause for a moment, then push through your heels to return to the starting position. Repeat for the desired number of repetitions.