Hack Squat
Machine squat with back support that allows extremely heavy quad loading without balance or stabilisation requirements. One of the best exercises for quad...
Difficulty
beginner
Category
strength
Primary Muscles
Quads
Equipment
Cables
Secondary Muscles
Glutes
Form cues
Simple cues for better reps
- Brace your core before each rep and keep your ribs stacked over your pelvis.
- Let your knees track in the same direction as your toes instead of collapsing inward.
- Control the lowering phase, then drive through the whole foot to stand tall.
- Keep the working muscles loaded rather than bouncing out of the bottom.
Common mistakes
What to avoid
Knees cave inward
Reduce the load and think about gently spreading the floor with your feet as you descend and stand.
Losing balance at the bottom
Slow the rep down and keep pressure through your heel, big toe, and little toe.
Rushing the descent
Use a controlled 2-3 second lower so you stay in position and feel the target muscles working.
How it should feel
Know when your form is on track
Target areas
- Quads and glutes should do most of the work.
- Your core should feel braced and stable throughout.
Good signs
- Feet stay planted and the rep path feels repeatable.
- Knees and hips bend smoothly together without pain.
Warning signs
- Sharp knee, hip, or back pain.
- Your heels lift or your knees cave hard on every rep.
Progressions
Make it easier
- Use a lighter load and shorten the range until you can control every rep.
- Hold onto a rack or stable support while you practise the pattern.
Make it harder
- Add load gradually once depth and control are consistent.
- Add a pause in the bottom position or use a slower eccentric.
Best alternatives
Goblet Squat
A simpler squat pattern that is easier to keep upright and controlled.
Leg Press
Trains the legs hard with less balance demand.
How to Perform
- Stand on the platform with your back and shoulders firmly against the pad
- Place feet shoulder-width on the platform
- Unrack the safety handles
- Lower by bending your knees to at least parallel depth
- Press up without fully locking out your knees at the top
Tips
- Keep your back flat against the pad and don’t let your hips roll under at the bottom — this protects your lower back
- No hack squat machine? Leg press, Smith machine squats, or heavy goblet squats provide similar supported quad loading
- Use a 2-3 second descent and controlled press — the machine allows very heavy loading so tempo control is essential for safety
- Placing feet too high and wide turns this into a glute exercise — keep feet low and narrow on the platform for maximum quad emphasis
- Feel the quads burning intensely, especially the outer sweep (vastus lateralis) — this is one of the best machines for building quad shape
Frequently asked questions
Is the Hack Squat good for beginners?
Yes, as long as you choose a version and load you can control. Start conservatively, learn the setup, and only progress when the target muscles are doing the work without joint discomfort.
How heavy should I go on the Hack Squat?
Use a weight that leaves 1-3 good reps in reserve for most working sets. If your range shortens, momentum increases, or you stop feeling the target muscles, reduce the load.
What can I use if I do not have a Cables?
Use one of the listed alternatives that trains the same pattern. The exact tool matters less than matching the movement, controlling the rep, and progressing gradually.
Track Hack Squat in PT Tracker
Log your sets, reps, and weight with smart suggestions based on your history.
Get Started Free
Ready to transform your training?
Join thousands of people tracking their fitness journey with PT Tracker. Start for free, upgrade when you're ready.