Exercise guide
Barbell Hack Squat
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
The Barbell Hack Squat is a behind-the-back deadlift variation that shifts the center of gravity, placing a unique emphasis on the quadriceps and glutes while building significant grip strength. It serves as an effective free-weight alternative to the hack squat machine, promoting lower body hypertrophy and postural control.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Place a loaded barbell on the floor and stand directly in front of it with your back to the bar.
- Position your feet shoulder-width apart with toes pointed slightly outward.
- Squat down deeply and grasp the bar with a shoulder-width, overhand grip (palms facing away from your body).
- Set your shoulder blades back and down, lift your chest, and maintain a neutral spine.
How to do it
- Drive through your heels to stand up, keeping the bar in close contact with the back of your legs throughout the ascent.
- Exhale as you reach the top of the movement, squeezing your glutes and quads without hyperextending your lower back.
- Inhale and lower the bar back to the floor by simultaneously hinging at the hips and bending your knees with control.
- Maintain a steady 2-1-2 tempo, ensuring the plates touch the floor lightly before starting the next rep.
Form checklist
- Keep the bar as close to your hamstrings and calves as possible to prevent forward tipping.
- Ensure your heels stay glued to the floor; do not let your weight shift to your toes.
- Maintain a flat back and avoid rounding the shoulders as the weight gets heavy.
- Keep your head in a neutral position, looking at a point on the floor about 5-10 feet in front of you.
Pro tips
- Think about 'pushing the floor away' rather than pulling the weight up to better engage the quadriceps.
- If your mobility is limited, place small weight plates under your heels to allow for a deeper squat and greater quad activation.
- Use lifting straps if your grip fails before your legs do, but prioritize raw grip strength for as long as possible.
Make it harder
- Perform the exercise from a deficit by standing on a 2-inch platform to increase the range of motion.
- Add a 3-second pause at the bottom of the movement to eliminate momentum and increase time under tension.
Frequently asked
- What muscles does the barbell hack squat work?
- The barbell hack squat primarily targets the calves, glutes, hamstrings, and quadriceps, and also works the abs and obliques as secondary muscles.
- What equipment do you need for the barbell hack squat?
- The barbell hack squat uses barbell and weight plate.
- Is the barbell hack squat good for beginners?
- The barbell hack squat is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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