What should I feel during Back squat?

Quads and glutes drive evenly out of the bottom.

What are common mistakes with Back squat?

Losing brace at depth; Hips shooting up first

How do I progress Back squat?

Progress only when depth and brace match across all sets.

What can I do instead of Back squat?

Front squat, Hack squat, Leg press

Back squat

Bar over mid-foot, brace before descent, knees track over toes.

family=squatpattern=squatforce=pushmechanic=compoundequipment=free_weight

Muscles

muscle emphasis · training guidance

quadsPRIME

glutes68

hamstrings56

Primary: quads
Supporting: glutes, hamstrings

Mechanics

Pattern: squat
Equipment: barbell, rack
Geometry: 90° Alignment
Target feel: Quads and glutes drive evenly out of the bottom.
Progression: Progress only when depth and brace match across all sets.
Regression: Use leg press or goblet squat if back position breaks.

Common errors

Losing brace at depth
Hips shooting up first
UNKNOWN — no additional common error is recorded in the biomechanics dataset.

Programming by goal

Goal	Sets × reps	Effort cap	Tempo
Strength	3 × 3-6	RPE ≤ 9	2-0-X-0
Muscle growth	3 × 8-12	RPE ≤ 8	3-1-1-0
Endurance	3 × 15-25	RPE ≤ 7	2-0-2-0

Engine defaults for one exercise. Adjust load so every rep stays within the listed effort cap.

Equipment context

The barbell version lets you move the most absolute load, while your grip and shoulder girdle stabilize the path.

Substitutions

Goblet squat Same pattern: squat · Same equipment category: free_weight
Cyclist squat Same pattern: squat · Shared equipment: barbell
Low-bar back squat Same pattern: squat · Shared equipment: barbell, rack
Reverse lunge (DB) Same pattern: squat · Same equipment category: free_weight
Bulgarian split squat Same pattern: squat · Same equipment category: free_weight

See all 33 quads exercises in the Atlas

Progression ladder

Beginner / regression: Use leg press or goblet squat if back position breaks.
Standard: Back squat
Advanced / progression: Progress only when depth and brace match across all sets.

Atlas metrics

Movement pattern: squat
Primary target: quads
Supporting muscles: glutes, hamstrings
Equipment: barbell, rack
Joint geometry: 90° Alignment
Alternatives: 3 substitutions

Evidence & limits

Last reviewed against peer-reviewed biomechanics references. Exercise descriptions are framed as training guidance, not medical advice.

Source: ExRx.net Exercise & Muscle Directory

Joint-profile source set: This exercise maps to the repository's sourced squat record with none support. The source brief groups ExRx, NSCA, and ACSM material; it does not retain a per-record source split.

Eccentryx is fitness software. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease, injury, or medical condition. Consult a licensed physician before beginning any exercise program.

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FAQ

How do I set up Back squat?: Bar over mid-foot, brace before descent, knees track over toes.
What should I feel during Back squat?: Quads and glutes drive evenly out of the bottom.
What are common mistakes with Back squat?: Losing brace at depth; Hips shooting up first
How do I progress Back squat?: Progress only when depth and brace match across all sets.
What can I do instead of Back squat?: Front squat, Hack squat, Leg press