Barbell

Back Squat — CrossFit Strength Guide

BB

By Borja Bes — CrossFit Athlete & Hyrox Finisher

The back squat is the foundational barbell strength movement in CrossFit — the primary way athletes develop the lower-body strength that transfers to every other movement on the whiteboard. The bar rests across the upper traps (high bar) or rear deltoids (low bar), with the athlete squatting to full depth. CrossFit uses the high bar back squat as standard because it mirrors the upright torso position of thrusters and overhead squats. Back squat strength reliably predicts CrossFit performance — it correlates with deadlift, power clean, and general conditioning capacity across almost all modalities.

Quick answer

Back Squat is best used when the workout goal matches its main demand: barbell capacity, clean mechanics, and scalable intensity.

Muscles Worked

QuadricepsGlutesHamstringsCoreUpper back

Equipment

BarbellSquat rackWeight plates

Best For, Avoid If, and Scaling

Best forBarbell WODs, skill practice, and athletes who can keep back squat mechanics consistent under fatigue.
Avoid ifPain changes your movement pattern, fatigue makes reps sloppy, or the workout asks for a standard you cannot repeat safely.
ScalingGoblet squat, air squat with perfect depth, or box squat to develop depth confidence.

How to Do the Back Squat

1

Set bar across the upper traps (high bar) — not the neck. Grip just outside shoulder-width.

2

Unrack and step back — feet shoulder-width, toes slightly out.

3

Take a breath and brace the core hard before descending.

4

Break at hips and knees simultaneously, sitting back and down.

5

Reach full depth — hip crease below the top of the knee.

6

Drive through the floor to stand, maintaining neutral spine throughout.

Common Mistakes

Bar resting on the neck — always position on the upper traps, not the cervical spine.

Not reaching depth — hip crease must pass below the knee for a CrossFit-standard rep.

Knees caving inward at the bottom — cue "spread the floor" with your feet.

Good morning squat (hips rise faster than shoulders) — indicates weak quads or poor bracing.

Coaching Tips

Brace hard before every rep — the core is the safety system for the spine under load.

Video from the side to verify depth — most athletes think they are hitting depth when they are not.

Programme back squats twice per week: one heavy day (3-5 rep), one volume day (8-12 rep).

Scaling Options

Easier / Beginner

Goblet squat, air squat with perfect depth, or box squat to develop depth confidence.

Harder / Advanced

Higher load, pausing squats (3 sec hold), tempo squats, or 1.5-rep squats.

Related WODs

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Movement Practice WOD

exercise wod

AMRAP 12

8 controlled reps

10 bodyweight reps

200m easy run or 60 sec cardio

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Technique + Conditioning

scaled workout

4 rounds for quality

10 technique reps

30 sec core hold

12 low-skill conditioning reps

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Frequently Asked Questions

What is the difference between high bar and low bar back squat?

High bar (bar on upper traps): more upright torso, greater quad demand, directly transfers to CrossFit movements. Low bar (bar on rear deltoids): more forward lean, greater posterior chain demand, allows more total load. CrossFit uses high bar because it matches the torso position of thrusters, cleans, and overhead squats.

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