Smart Workout Diary

Hack Squat

The machine hack squat is a guided lower-body squat performed on a hack squat machine. It primarily trains the quadriceps, with substantial involvement from the glutes and hamstrings. It supports leg strength and muscle development while the machine provides a fixed movement path.

Demonstration

Hack Squat — demonstration 1
Hack Squat — demonstration 2

Instructions

  1. Set the machine: Adjust the shoulder pads and foot platform if possible, then select a light load for practice.
  2. Position yourself: Place your back and shoulders firmly against the pads, brace your torso, and put your feet about shoulder-width apart on the platform.
  3. Release the safety handles: Keep your knees softly bent rather than locked, and maintain full contact between your back and the pad.
  4. Lower with control: Bend your knees and hips to descend along the machine path. Keep your knees tracking in the same direction as your toes and keep your heels planted.
  5. Drive upward: Push through your mid-foot and heels to extend your knees and hips, stopping just short of locking the knees.
  6. Finish safely: Complete the set under control, return the carriage to the secure position, and engage the safety handles before stepping out.
Muscle Group
Quads
Other Muscle Groups
Glutes, Hamstrings
Type
Strength
Mechanics
Compound
Equipment
Machine Strength
Difficulty
Beginner

Technique tips

  1. Use a manageable load: Learn the machine's range and safety stops before increasing the weight.
  2. Keep knee alignment: Do not allow the knees to collapse inward; they should track over the toes.
  3. Control the depth: Descend only as far as you can while keeping your heels down, back supported, and pelvis stable.
  4. Breathe steadily: Inhale on the descent, brace your trunk, and exhale as you push upward.
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