Barbell Hack Squat (Shallower Range)

Stand with the bar held behind your thighs, arms straight and feet securely planted.

Brace your trunk and bend the hips and knees, keeping the bar close behind the legs.

Keep the knees moving in line with the feet.

Maintain a secure grip without curling the bar or shrugging it upward.

Rounding the lower back or changing depth unpredictably between repetitions.

Letting the knees collapse inward or the heels lift.

Pulling with bent elbows or swinging the bar away from the legs.