Exercise guide
Barbell Core Squat
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
The Barbell Core Squat, often referred to as a Zercher Squat, places the load in the crooks of the elbows to drastically increase anterior core demand and upper back stability. This variation allows for a more upright torso and deeper hip flexion, making it highly effective for building functional leg strength and a bulletproof midsection.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Set the barbell in a power rack at roughly waist height.
- Hook your elbows under the bar so it rests in the crooks of your arms, then clasp your hands together or keep your forearms vertical.
- Step back from the rack and set your feet slightly wider than shoulder-width with toes pointed slightly outward.
- Pull the bar tight against your upper abdomen to create a stable shelf and engage your lats.
How to do it
- Inhale deeply into your diaphragm and brace your core hard to create internal pressure.
- Lower your hips back and down in a controlled 3-second eccentric phase, keeping your elbows high and chest upright.
- Descend until your elbows touch your inner thighs or you reach the bottom of your active range of motion.
- Drive through your mid-foot and exhale forcefully as you return to a full standing position, squeezing your glutes at the top.
Form checklist
- Keep the weight tucked tight against your body; do not let the bar drift forward.
- Maintain a tall chest and neutral spine to prevent the upper back from rounding.
- Ensure knees track in line with your toes and do not cave inward.
- Keep your weight distributed across the entire foot, focusing on the mid-foot and heel.
Pro tips
- Think about 'scooping' the bar upward with your forearms throughout the lift to maximize lat engagement and thoracic extension.
- If the bar pressure on your elbows is uncomfortable, wrap a towel around the center of the bar or wear long sleeves to provide cushioning.
Make it harder
- Add a 2-3 second pause at the bottom of the squat to maximize time under tension and core recruitment.
- Perform the movement with a 4-0-2-0 tempo (4 seconds down, no pause, 2 seconds up) to increase metabolic stress.
Frequently asked
- What muscles does the barbell core squat work?
- The barbell core squat primarily targets the glutes, hamstrings, and quadriceps, and also works the erector spinae as secondary muscles.
- What equipment do you need for the barbell core squat?
- The barbell core squat uses barbell.
- Is the barbell core squat good for beginners?
- The barbell core squat is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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