Barbell Squat

Anton YefanovUpdated September 6, 2026

The barbell back squat is the most recognized lower-body lift in the world. The bar is racked across the upper back and the lifter squats down to at least parallel before standing back up, training the quads, glutes, and entire trunk under heavy load. It's the lift powerlifters compete in and the foundation of every serious strength program ever written.

How to do the Barbell Squat

Set the bar in a rack at about chest height and step under it to rack it across your upper back.
Grip the bar slightly wider than shoulder width, brace your core, and step back from the rack.
Stand with feet shoulder-width apart, toes turned slightly out, and chest tall.
Push your hips back and down, bending the knees to squat down until your hips reach below the knees.
Drive through the full foot to stand back up, keeping the chest tall and bar path straight.
Lock out the hips and knees at the top, reset your breath and brace, and repeat for clean reps.

Muscles worked

Primary:: Quads
Secondary:: Glutes

Why train it

Builds total lower-body strength led by the quads and glutes.
Trains core bracing and full-body stability under heavy load.
Reinforces the squat pattern that carries over to sport and daily life.

Common mistakes

Letting the knees cave inward on the way up, which strains the knees and weakens the drive.
Cutting the depth short and not reaching at least parallel, missing the full quad and glute work.
Rounding the lower back at the bottom, which puts the spine at risk under heavy load.
Shifting the bar weight onto the toes, which throws off the balance and strains the lower back.

Frequently asked questions

How deep should you squat?

As deep as you can while your lower back stays neutral, ideally with the hips at or below the knees. Depth matters for results: in a 10 week study, people who squatted to full depth grew their glutes and inner thighs two to three times as much as people who stopped at a half squat. If your back rounds before parallel, work on ankle mobility or try squat shoes with a raised heel.

Is it bad for your knees if they go past your toes?

No. Knees travelling forward past the toes is normal in a deep squat, especially for anyone with long legs. Trying to stop it shifts the work to your hips and lower back instead. What matters is that the knees track in line with the toes and do not cave inward.

Can squats hurt your back?

They can when the back rounds at the bottom or the chest drops on the way up, which mostly happens when the weight is too heavy for your form. Brace hard before every rep, keep the bar over the middle of your foot, and stop the set when the bottom position starts to change. Done that way, squats tend to make the back stronger rather than hurt it.

Do squats work the glutes?

Yes, and more the deeper you go. The squat's main target is the quads, but the glutes do a lot of work coming out of the bottom position. In a 2023 study, squats grew the glutes about as much as hip thrusts did, and grew the quads more on top.

Should you squat more than you deadlift?

Most people deadlift more, often 10 to 20 percent more, because the range of motion is shorter and the whole back chain helps. A squat that is much heavier than your deadlift usually means you are cutting depth. A deadlift far ahead of your squat is common in people with long arms and is nothing to fix.

What muscles does the Barbell Squat work?

The Barbell Squat trains the quads as the main target. Expect the glutes to take some of the load as well.

What equipment do I need for the Barbell Squat?

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

Is the Barbell Squat suitable for beginners?

With some training behind you. The Barbell Squat is rated intermediate, which means the setup matters as much as the effort. It is a reasonable first month goal rather than a first session one, and the alternatives below are the easier way in.

Can I do the Barbell Squat at home?

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

How many sets and reps of the Barbell Squat should I do?

Three to five sets of 5 to 10 reps. Rest two to three minutes: squats tire the whole body, and a rushed second set is where depth and bracing fall apart.

What are good alternatives to the Barbell Squat?

Cossack Squat, Dumbbell Bulgarian Split Squat, and Sissy Squat train the same primary muscles as the Barbell Squat. Pick whichever one suits the equipment in front of you.