Skip to content
Crucible
Download on the App Store
Crucible

Crucible is a precision strength training system built around your body, your equipment, your location, and your time.

Download on the App Store

© 2026 Crucible Fit, LLC. All rights reserved.

Explore

  • Exercise Library

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

Support

  • Support
  1. Home
  2. /
  3. Exercises
  4. /
  5. Legs
  6. /
  7. Barbell Full Squat

Exercise guide

Barbell Full Squat

  • Intermediate
  • Compound
  • Rep-based
  • Lower legs
  • Upper legs

The barbell full squat is a foundational compound movement that maximizes lower body development by utilizing a full range of motion to recruit the glutes, quads, and hamstrings. Going below parallel increases muscle fiber recruitment and improves functional mobility under load.

Reviewed by the Crucible team · Updated June 2026

Watch the Barbell Full Squat demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Calves
  • Glutes
  • Hamstrings
  • Quadriceps

Secondary

  • Abs
  • Obliques

Equipment

  • Barbell
  • Weight plate

Setup

  1. Set the barbell in a rack at mid-chest height and step under it, resting the bar across your upper traps.
  2. Grip the bar firmly with hands just outside shoulder-width and retract your shoulder blades to create a stable shelf.
  3. Step back and set your feet slightly wider than shoulder-width apart with toes pointed slightly outward.
  4. Stand tall, brace your core, and look straight ahead to establish a neutral spine.

How to do it

  1. Inhale deeply into your abdomen and initiate the movement by simultaneously hinging at the hips and bending the knees.
  2. Lower your hips under control until they are below the level of your knees, maintaining a vertical torso as much as possible.
  3. Drive through your mid-foot to reverse the movement, exhaling forcefully as you return to the starting position.
  4. Maintain a consistent tempo of 2 seconds down, a brief pause at the bottom, and 1 second up.

Form checklist

  • Keep your chest up and avoid excessive forward lean.
  • Ensure your knees track in line with your toes, not caving inward.
  • Keep your heels firmly planted on the floor throughout the entire lift.
  • Maintain a tight core and neutral spine to protect the lower back.

Pro tips

  • Pull the bar down into your traps to create total body tension and stabilize the spine.
  • Think about 'screwing' your feet into the floor to engage the glutes and create external rotation torque in the hips.
  • Focus on driving your hips straight up rather than back during the initial phase of the ascent.

Make it harder

  • Add a 2-second pause at the bottom of the squat to eliminate momentum and increase time under tension.
  • Implement a slow eccentric (4-5 seconds) to maximize muscle fiber breakdown and control.

Frequently asked

What muscles does the barbell full squat work?
The barbell full squat primarily targets the calves, glutes, hamstrings, and quadriceps, and also works the abs and obliques as secondary muscles.
What equipment do you need for the barbell full squat?
The barbell full squat uses barbell and weight plate.
Is the barbell full squat good for beginners?
The barbell full squat is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • 3 Point Standing HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Cone Single Foot Lateral HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Way Single Leg HopAdvanced · calves, glutes, hamstrings, and quadriceps
  • Alternate Knee Cross Over Sit Against WallIntermediate · calves, glutes, hamstrings, and quadriceps

Train this with a plan, not guesswork

Crucible builds the barbell full squat into a precise program around your body, equipment, location, and time.

Download on the App Store