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Quad exercise · Compound

Squat

The basic lower-body lift: with your feet about shoulder-width apart, you bend your hips and knees to sit down between your feet and stand back up, training the quads and glutes.

Equipment

Primary muscles
Quads, Glutes
Secondary
Lower back, Adductors
Difficulty
Intermediate
Logged as
Weight × reps
Squat (Barbell)

Loads from YouTube only when you press play. The video is by an independent creator.

Why do it

It's the main leg builder in most programs because it trains a lot of muscle at once and is easy to load up over time. Start with bodyweight to learn the depth and knee position. The barbell back squat lets you add the most weight but needs a rack with safety arms; dumbbells are simpler and stop being practical once they get too heavy to hold. The Smith machine takes balance out of it but locks the bar path, so set your feet a little forward.

How to do it (Barbell)

  1. Set the bar at about shoulder height in the rack, step under it so it rests on your upper back just below your neck, and grip it wider than shoulder-width.

  2. Unrack the bar, step back, and set your feet shoulder-width apart with your toes turned slightly out.

  3. Bend your hips and knees to sit down between your feet, keeping your chest up and your knees tracking over your toes. Go until your thighs are at least parallel to the floor.

  4. Drive back up through your whole foot. Use the safety arms when you train heavy and learn how to bail out of a failed rep before you need to.

Common mistakes

Cutting depth short

Stopping well above parallel shortens the range and usually means the weight is too heavy. Go until your thighs are at least parallel, as the steps describe.

Knees caving in on the way up

Knees that collapse inward as you stand leak force. Push them out so they track over your toes from the bottom to the top.

Heels coming off the floor

Shifting onto your toes throws your balance forward. Keep your whole foot down; a slightly wider stance or a bit more toe-out often helps.

Hips shooting up first

If your hips rise faster than your chest, the squat turns into a hinge and your lower back takes over. Lead with your chest and drive up through your whole foot.

Sets, reps and progression

How many sets you do and how close to failure you take them depend on your goal and your week, not on the exercise. These guides cover it:

  • How Many Sets Per Week to Build Muscle
  • How Close to Failure Should You Train?
  • How Much Weight to Add and When to Add It

Alternatives that train the same thing

Same movement, a different angle or piece of equipment.

Front Squat

Barbell, Dumbbell, Kettlebell

Load in front keeps you upright; mostly a quad exercise.

Programs and guides that use it

How to Get Bigger Legs: Training Every Muscle GroupPowerlifting Program: Popular Programs Compared, Plus a Free 12-Week PlanStarting Strength Program: The Novice Plan, Phase by PhaseHow to Grow Your Glutes: Exercises, Sets, 3-Day Plan