Dumbbell Cossack Squat

Anton YefanovUpdated September 6, 2026

The dumbbell Cossack squat is the loaded version of the wide stance lateral squat. Holding a dumbbell at chest height adds resistance and acts as a counterweight that lets you sit further back into the hip without falling backward. One leg takes deep hip, knee and ankle flexion while the other stays straight with the foot rolled onto its heel, loading the inner thigh and hamstring of the extended side. The abdominals hold the ribs down so the extra front load does not pull the lower back into extension.

How to do the Dumbbell Cossack Squat

Hold one dumbbell at chest height with both hands under the top plate.
Stand with your feet well outside shoulder width and toes pointing forward.
Brace your abdominals and keep your ribs pulled down.
Shift your weight over one leg and sit the hips back and down over that foot.
Keep the other leg straight with the foot rolled onto its heel and the toes up.
Push through the bent leg to return to center, then repeat on the other side.

Muscles worked

Primary:: Quads and Adductors
Secondary:: Glutes, Hamstrings, and Core

Why train it

Adds load to a frontal plane pattern that most leg exercises never train.
The front held dumbbell counterbalances the body and allows more depth.
Builds adductor strength and hip range at the same time.

Common mistakes

Letting the dumbbell pull the chest down, which rounds the upper back at depth.
Arching the lower back to reach depth instead of respecting available hip range.
Lifting the heel of the squatting leg, which signals an ankle mobility limit.
Bending the extended leg, which removes the adductor and hamstring stretch.

Frequently asked questions

What muscles does the Dumbbell Cossack Squat work?

The Dumbbell Cossack Squat works mostly through the quads and adductors, with the glutes, hamstrings, and core also opening up as you move through it. Expect to feel it as length in the muscle rather than a burn.

What equipment do I need for the Dumbbell Cossack Squat?

Only a dumbbell. Nothing beyond that is required to run the movement the way it is described above.

Is the Dumbbell Cossack Squat suitable for beginners?

With some care. The Dumbbell Cossack Squat is rated intermediate: it takes the spine or joints further than everyday movement does, so start light and with a small range, and grow both slowly.

Can I do the Dumbbell Cossack Squat at home?

Yes, if you own a dumbbell. That is the whole requirement, and it is the reason this one travels well between a home setup and a gym floor.

How long should I spend on the Dumbbell Cossack Squat?

Two or three rounds of 30 to 60 seconds, per side where the drill has one. This is daily work, and it does more before a session as a warm-up than it does as a finisher.

What are good alternatives to the Dumbbell Cossack Squat?

Cossack Squat, Dumbbell Lateral Lunge, and Barbell Banded Back Squat train the same primary muscles as the Dumbbell Cossack Squat. Pick whichever one suits the equipment in front of you.