Exercise guide
Dumbbell Hack Squat
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
The Dumbbell Hack Squat is a quad-dominant squat variation that mimics the hack squat machine by positioning the load behind the body, allowing for a more vertical torso and deeper knee flexion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand with your feet shoulder-width apart and a slight outward toe flare.
- Hold a dumbbell in each hand with your arms extended straight down at your sides.
- Position the dumbbells so they are resting against the back of your thighs, just below your glutes.
- Engage your core and pull your shoulder blades back to create a stable upper body.
How to do it
- Inhale and begin the descent by bending at the knees and hips simultaneously, keeping your torso as upright as possible.
- Lower your body until your thighs are at least parallel to the floor, allowing the dumbbells to slide down the back of your legs.
- Exhale and drive through the mid-foot to return to the starting position, focusing on pushing the floor away.
- Maintain a controlled tempo, taking 2-3 seconds to lower and 1-2 seconds to rise.
Form checklist
- Keep your heels firmly planted on the ground at all times.
- Ensure your knees track in line with your toes and do not cave inward.
- Maintain a proud chest and avoid rounding your lower back as you descend.
- Keep the dumbbells in contact with or very close to the back of your legs to maintain the center of mass.
Pro tips
- To maximize quadriceps recruitment, focus on driving your knees forward while keeping your weight distributed through your mid-foot.
- If you have limited ankle mobility, place small weight plates under your heels to allow for a deeper, more upright squat.
- Think of the dumbbells as a guide; they should track vertically behind your center of gravity to keep the tension on the legs rather than the lower back.
Make it harder
- Pause for 2 seconds at the bottom of each repetition to increase time under tension and eliminate momentum.
- Perform '1.5 reps' by squatting to the bottom, coming halfway up, returning to the bottom, and then standing all the way up.
Frequently asked
- What muscles does the dumbbell hack squat work?
- The dumbbell hack squat primarily targets the calves, glutes, hamstrings, and quadriceps, and also works the adductors and hip flexors as secondary muscles.
- What equipment do you need for the dumbbell hack squat?
- The dumbbell hack squat uses dumbbell.
- Is the dumbbell hack squat good for beginners?
- The dumbbell 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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