All training resources
Exercise guide
Skull Crusher
A lying triceps extension using a barbell to isolate the triceps through a full range of motion.
What this exercise works
- Muscles
- triceps brachii
- Goals
- hypertrophy
- Equipment
- Barbell
- Category
- Strength
- Difficulty
- intermediate
Demonstration
Step 1
Step 2
How to perform the movement
- Lie on a flat bench holding a barbell over your chest with a narrow grip.
- Lower the bar toward your forehead by bending at the elbows.
- Extend your arms back to the start.
- Repeat.
Technique cues and common mistakes
- Keep upper arms vertical throughout.
- Lower slowly to protect the elbows.