The goal with EZ Bar Skull Crusher is simple—make every repetition look repeatable from the same stable start. The exercise mainly trains triceps long head, while front delts help support and control the movement. You will use an EZ curl bar and a flat bench while working from supine on the bench.
What makes a good EZ Bar Skull Crusher repetition?
Keep the upper arm controlled and finish through elbow extension without forcing a hard lockout. The movement has a clear, scalable pattern. Start light, learn the positions in order, and progress only while every repetition remains controlled.
Muscles worked
Primary
Triceps long head
These muscles should carry most of the intended work when the setup and movement path stay consistent.
Supporting
Front delts
These muscles assist the movement or help keep the rest of your position steady.
Set up before you move
Start from supine on the bench. Use the prescribed grip: secure, exercise-appropriate grip. Check that an EZ curl bar and a flat bench are secure and adjusted before you begin.
Step-by-step tutorial
How to do EZ Bar Skull Crusher
- 1
Set the starting position
Take the EZ Bar Skull Crusher position with EZ curl bar and flat bench, brace the trunk, stabilize the shoulders, and point the elbows along the intended path.
Breathing: Breathe steadily; do not hold your breath.
- 2
Perform the effort phase
Exhale and extend the elbows for EZ Bar Skull Crusher; keep the upper arms controlled and avoid using torso momentum.
Breathing: Exhale through the effort.
- 3
Control the end position
Finish with the elbows straight but not forcefully locked, shoulders stable, and wrists aligned with the forearms.
Breathing: Breathe steadily; do not hold your breath.
- 4
Return under control
Inhale and bend the elbows under control until the triceps are lengthened and the exact starting alignment is restored.
Breathing: Inhale through the controlled return.
Common mistakes to avoid
Starting before the setup is stable
Do not rush the first position. Take the EZ Bar Skull Crusher position with EZ curl bar and flat bench, brace the trunk, stabilize the shoulders, and point the elbows along the intended path. Make that setup feel repeatable before adding speed or resistance.
Letting the working position drift
Keep your supine on the bench setup consistent through the rep and maintain the secure, exercise-appropriate grip. If another part of the body has to swing or twist, reduce the load or range.
Rushing the return
The return is part of the exercise, not a pause between efforts. Inhale and bend the elbows under control until the triceps are lengthened and the exact starting alignment is restored.
Forcing a range you cannot control
Use the EZ Bar Skull Crusher setup, maintain controlled joint alignment, and stop if the movement causes pain.
Sets, reps, and rest
Start with 2–4 sets of 10–15 smooth repetitions. Rest 45–90 seconds between sets. Use enough resistance to feel the target muscles without shortening the range or borrowing momentum from the rest of your body.
Treat this as a starting framework. Your load and volume should match your current technique, recovery, and training plan.
EZ Bar Skull Crusher questions
Is EZ Bar Skull Crusher suitable for beginners?
EZ Bar Skull Crusher is classified as a beginner-level movement in this guide. The movement has a clear, scalable pattern. Start light, learn the positions in order, and progress only while every repetition remains controlled.
What muscles does EZ Bar Skull Crusher work?
EZ Bar Skull Crusher primarily works triceps long head, with front delts assisting or stabilizing the movement.
What equipment do I need for EZ Bar Skull Crusher?
You need an EZ curl bar and a flat bench. Set everything up securely before the first repetition.





