ProgreviaEZ bar skull crusher
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How to do it
Lying down, elbows pointing at the ceiling and fixed: lower the EZ bar toward your forehead bending only at the elbow and extend without flaring. The EZ bar spares the wrists.
Muscles worked
Mainly triceps. Train it inside a balanced routine to progress safely.
Technical sheet
- Movement pattern
- Isolation
- Minimum level
- Beginner
- Technical demand
- Needs coaching
- Fatigue it generates
- Moderate (0.7 out of 2.2)
- Risk if technique breaks down
- Medium
- Peak tension in the stretched position
These are the values the generator uses to decide where the exercise goes within the session.
Recommended sets and reps
As an isolation exercise, it works best in 3–4 sets of 10–15 reps with 0–2 RIR. Use it at the end of the session to add volume without systemic fatigue.
Common mistakes to avoid
- Flaring the elbows out, shifting tension away from the triceps to the chest and shoulders.
- Using too much weight at the cost of technique and full range of motion.
- Doing reps too fast, without controlling the eccentric (lowering) phase.
How EZ bar skull crusher compares with other triceps exercises
The catalogue has 11 exercises with triceps as the main muscle group. Ranked from least to most fatiguing with the same values the generator uses, EZ bar skull crusher is number 6 (tied with one other).
It sits in the middle of its group: it works as the day's main exercise or as a second or third one.
With different equipment, the same movement pattern offers 6 alternatives, such as Triceps kickback, Triceps pushdown and Overhead cable triceps extension.
| Exercise | Equipment | Fatigue | Technique |
|---|---|---|---|
| Triceps kickback | dumbbells | Low (0.4 out of 2.2) | Basic |
| Triceps pushdown | cable | Low (0.5 out of 2.2) | Basic |
| Overhead cable triceps extension | cable | Low (0.6 out of 2.2) | Basic |
| Overhead dumbbell extension | dumbbells | Low (0.6 out of 2.2) | Needs coaching |
| Bench dips | bodyweight | Low (0.6 out of 2.2) | Basic |
| Seated overhead dumbbell triceps extension | dumbbells | Moderate (0.7 out of 2.2) | Basic |
| EZ bar skull crusher | barbell | Moderate (0.7 out of 2.2) | Needs coaching |
Tension with the muscle stretched. EZ bar skull crusher loads the muscle when it is longest. In the review by Kassiano et al. (2023), across eleven studies, full range of motion and partials performed in the initial part of the movement — with the muscle long — produced more growth than partials performed at the end.
An isolation exercise. In the trial by Gentil et al. (2015), with untrained young men over ten weeks, the biceps curl and the lat pulldown were equally effective for gaining strength and size in the elbow flexors: isolation is not filler.
- Kassiano W, Costa B, Nunes JP, Ribeiro AS, Schoenfeld BJ, Cyrino ES. Which ROMs lead to Rome? A systematic review of the effects of range of motion on muscle hypertrophy. Journal of Strength and Conditioning Research. 2023;37(5):1135-1144.
- Gentil P, Soares S, Bottaro M. Single vs. multi-joint resistance exercises: effects on muscle strength and hypertrophy. Asian Journal of Sports Medicine. 2015;6(2):e24057.
Alternative exercises
- Triceps pushdown
- Overhead dumbbell extension
- Triceps kickback
- Overhead cable triceps extension
- Seated overhead dumbbell triceps extension
More Isolation exercises
Add it to your routine
Progrevia can generate a personalized routine that includes EZ bar skull crusher based on your level, goal and available days.
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Generate a full routine with the emphasis on Triceps and EZ bar skull crusher among your preferred exercises. Free, no sign-up.
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Frequently asked questions
What muscles does EZ bar skull crusher work?
EZ bar skull crusher mainly works the triceps muscle group, plus synergist and stabilizer muscles depending on the variation.
How many sets of EZ bar skull crusher should I do?
Between 3 and 5 sets per session, adjusting the total weekly volume for triceps to your level (about 10–20 sets per muscle per week).
Is EZ bar skull crusher good for building muscle?
Yes. Combined with progressive overload, good technique and enough rest, it's an effective tool to grow triceps.
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