Skullcrusher

The Skullcrusher is a must-have exercise for anyone who wants to build powerful, well-defined triceps. Hugely popular in strength training, it is regularly included in the training programs of athletes practicing streetlifting, bodybuilding, or general fitness. In this article, we cover proper technique, the muscles targeted, the benefits, and the mistakes you need to avoid.

How to Perform the Skullcrusher

Executing the Skullcrusher requires focus and solid movement control in order to avoid injury.

Exercise Technique

To perform the Skullcrusher correctly, follow these steps:

1. Lie flat on a bench holding an EZ bar or dumbbells.
2. Grip the bar in pronation (palms facing up), hands shoulder-width apart.
3. Extend your arms above your chest, elbows locked out but not hyperextended.
4. Lower the bar slowly by bending your elbows, bringing it close to your forehead (hence the name « skullcrusher »), in the same fashion as a close-grip barbell movement.
5. Keep your elbows tight and stationary – do not let them flare outward.
6. Press the weight back up by contracting your triceps until you reach the starting position.

Muscles Targeted

The Skullcrusher is primarily an isolation exercise – much like dumbbell triceps extensions – targeting the triceps brachii, specifically:

• The long head of the triceps: the most voluminous portion, giving the arm its thickness.
• The lateral head: contributes to the width of the arm.
• The medial head: stabilizes the elbow and gives the triceps a complete appearance.

In addition, the Skullcrusher lightly recruits stabilizing muscles such as the shoulders and forearms to maintain balance – a quality that transfers well to weighted dips.

What Are the Benefits of the Skullcrusher?

Adding the Skullcrusher to your training brings several benefits:

• Maximum triceps isolation: one of the best movements to target this muscle without excessive contribution from other muscle groups.
• Visible progression: a perfect exercise for gaining strength and size quickly.
• Execution variety: can be performed with an EZ bar, straight bar, dumbbells, or cable.
• Improved performance on compound movements such as the bench press and dips.

Mistakes to Avoid to Stay Injury-Free

Like any movement, the Skullcrusher can become dangerous if performed incorrectly. Here are the common mistakes:

• Moving the elbows during the descent: keep them fixed to avoid overloading the joint.
• Going too low: stop at forehead height or slightly above to avoid unnecessary stress on the elbows.
• Using too much weight: opt for a moderate load with good movement control.
• Jerky movements: prioritize slow, controlled reps.
• Skipping the warm-up: the elbow joint is fragile – a thorough warm-up is essential.

Coach’s Conclusion

The Skullcrusher is an essential exercise for anyone who wants to build massive, powerful triceps. This isolation movement – both technical and demanding – perfectly complements an upper-body training program. When performed correctly, you will notice rapid gains in both strength and aesthetics. Never forget that quality of execution always comes before load. Train clean, stay consistent, and your triceps will thank you.

Start Here

• Streetlifting Program
• Weighted Muscle Up Program
• Weighted Pull-Up Program
• Weighted Dip Program
• Squat Program

More Triceps Exercises

• Assisted Dips
• Chair Dips
• Triceps Kickback
• Bench Dips
• Low-Pulley Triceps Extension
• Dumbbell Triceps Extension