Legs Barbell + squat rack Intermediate QuadricepsGlutesHamstrings

Barbell Back Squat

The back squat is the single most effective lower-body exercise. It loads the quads, glutes, and hamstrings under a full range of motion with enough weight to drive real strength and muscle gain.

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Step-by-step: Barbell Back Squat

  1. 1Bar rests on the shelf of your traps — not on the bony top of your spine. Squeeze your shoulder blades together to create this shelf.
  2. 2Feet shoulder-width apart or slightly wider, toes pointed out 15–30 degrees in the direction your knees will travel.
  3. 3Take a big breath into your belly (not your chest), brace your core like you're about to take a punch, and hold it throughout the descent.
  4. 4Break at the hips and knees simultaneously — do not push your knees forward first.
  5. 5Keep your chest up and torso as upright as your mobility allows. The bar should track a vertical line over the middle of your foot.
  6. 6Knees track over your toes throughout — do not let them cave inward (valgus collapse).
  7. 7Squat to parallel or below — crease of the hip below the top of the knee. Partial squats limit the glute and hamstring recruitment.
  8. 8Drive through your whole foot on the way up. Think "push the floor away" rather than "stand up."

What most people get wrong

How to program the Barbell Back Squat

For strength: 3–5 sets of 3–5 reps with 3–5 min rest. For hypertrophy: 3–4 sets of 6–10 reps with 2–3 min rest. Progress 5 lbs per session as a beginner; 2.5 lbs per session intermediate. Squat twice a week minimum for best results.

Exercises to swap in

Frequently asked questions

Primary muscles: Quadriceps, Glutes, Hamstrings. Secondary muscles: Core, Lower back, Calves.
Barbell + squat rack
Good alternatives include: Goblet Squat, Leg Press, Bulgarian Split Squat, Hack Squat.
The Barbell Back Squat is rated Intermediate. Learn the movement pattern with lighter weight before progressing.
Your coach knows the Barbell Back Squat TrainSMS includes this exercise in the programs that need it — automatically, based on your goal and equipment.
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