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Handler
Exercise database

Cossack Squat

Cossack Squat is an advanced squat exercise that primarily trains the quadriceps, glutes and adductors, with the core and ankle mobility assisting. Equipment: bodyweight.

Library data updated AdvancedBodyweight

What this page is: structured data from Handler's own exercise library — the same cues, mistakes, ranges, and modifications the coach uses in the app. It is general exercise information, not an individual technique assessment or medical advice. Stop any movement that causes pain and seek qualified coaching or clinical care for injuries.

Demonstration loop from Handler's exercise library. Only the still frame loads until you press play.

Technique

Form cues for the cossack squat

  1. 01

    Keep your whole foot heavy as you sit down.

  2. 02

    Set your feet, then screw them into the floor before you descend.

  3. 03

    Sit between your hips while keeping your chest tall.

  4. 04

    Drive through the whole foot and finish with glutes tight.

  5. 05

    Keep the straight-leg heel down as far as your range allows.

Troubleshooting

Common mistakes

  • Letting the knees collapse inward.

  • Rushing the bottom position.

  • Shifting onto the toes.

Programming defaults

Sets, reps, and rest by goal

These are the starting ranges Handler's library assigns to the cossack squat for each training goal. They are defaults the coach adjusts from your logged sets, not a prescription for any individual.

GoalSets × repsRest between sets
Strength5 × 3–6 reps3 min
Hypertrophy4 × 6–10 reps1 min 30 s
Fat loss3 × 10–15 reps1 min
General fitness3 × 6–10 reps1 min 30 s

Between sets

  • Use the first breaths to reset your brace.
  • Check that your next set starts with the same foot pressure.

Working around discomfort

Modifications by body area

How Handler adjusts the cossack squat when a lifter reports a sensitive area. These are training modifications, not treatment. Pain that persists or worsens needs clinical assessment.

Knee
Shorten the range, keep the knee tracking over the toes, and use a controlled tempo.
Hip
Use a comfortable stance and shorten the range if the front of the hip pinches.
Ankle
Limit jump height or depth and keep landings quiet and stacked.

Progression chain

Easier and harder variations

Regress to

Progress to

Questions about this exercise

What muscles does the cossack squat work?
The cossack squat primarily works the quadriceps, glutes and adductors. The core and ankle mobility work as secondary or stabilising muscles. In Handler's library it is classified as a squat movement.
What equipment do you need for the cossack squat?
None. The cossack squat is a bodyweight exercise, which is why it appears in Handler's anywhere setups.
How many sets and reps of the cossack squat should I do?
Handler's default for a strength focus is 5 × 3–6 reps with about 3 min rest, and for a muscle-building focus 4 × 6–10 reps with about 1 min 30 s rest. These are the library's starting ranges, not an individual prescription; the coach adjusts them from what you log.
Is the cossack squat suitable for beginners?
It is tagged advanced. A simpler starting point in the same progression chain is the prisoner squat.

More quad exercises

Invited TestFlight beta · iPhone-first

Let the coach program the cossack squat for you.

Handler is our product. In the invited iPhone beta, the coach places exercises like this one into your plan, sets the starting ranges shown above, and adjusts them from the sets you log. Test build, not a public download.

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