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  3. Exercises
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  5. Chest
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  7. EZ Bar Skull Crusher

Exercise guide

EZ Bar Skull Crusher

  • Intermediate
  • Isolation
  • Rep-based
  • Chest
  • Upper arms

The EZ Bar Skull Crusher is a premier isolation exercise for the triceps, specifically targeting the long head by placing the muscle under a deep stretch. The angled grip of the EZ bar reduces wrist strain compared to a straight bar, allowing for safer elbow alignment and maximum muscle fiber recruitment.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the EZ Bar Skull Crusher demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Triceps

Secondary

  • Abs
  • Serratus anterior

Equipment

  • Ez barbell

Setup

  1. Sit on a flat bench and grip the EZ bar on the inner angled handles with a shoulder-width overhand grip.
  2. Lie back on the bench and extend your arms straight up, then tilt them back about 15 degrees toward your head to maintain constant tension.
  3. Plant your feet firmly on the floor and retract your shoulder blades into the bench for a stable base.

How to do it

  1. Inhale and slowly lower the bar toward your forehead or just behind the top of your head by bending only at the elbows.
  2. Keep your upper arms fixed and elbows tucked in as you lower the weight over a controlled 2-3 second count.
  3. Exhale and contract your triceps to extend your arms back to the starting position.
  4. Stop just short of a full lockout at the top to maintain continuous tension on the triceps.

Form checklist

  • Keep your elbows tucked in and pointing forward, avoiding any outward flare.
  • Ensure your upper arms remain stationary; only the forearms should move.
  • Maintain a neutral wrist position throughout the movement to avoid joint strain.
  • Lower the bar under strict control to prevent momentum or impact.

Pro tips

  • Lowering the bar slightly behind your head instead of to your forehead increases the stretch on the triceps' long head.
  • Focus on 'squeezing' the bar hard to increase neural drive and muscle fiber recruitment.
  • Maintain the slight backward tilt of the upper arms at the top of the movement to prevent the triceps from resting.

Make it harder

  • Perform the movement on a decline bench to increase the range of motion and the stretch on the triceps.
  • Incorporate a 2-second pause at the bottom of the rep to eliminate momentum and increase time under tension.

Frequently asked

What muscles does the ez bar skull crusher work?
The ez bar skull crusher primarily targets the triceps, and also works the abs and serratus anterior as secondary muscles.
What equipment do you need for the ez bar skull crusher?
The ez bar skull crusher uses ez barbell.
Is the ez bar skull crusher good for beginners?
The ez bar skull crusher is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Arm Double CrossoverIntermediate · biceps, deltoids, and triceps
  • Aztec Push UpIntermediate · pectorals, serratus anterior, and triceps
  • Band Assisted DipIntermediate · triceps
  • Band Incline Triceps ExtensionIntermediate · triceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

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