Skull Crusher

An isolation barbell exercise for the triceps brachii.

  • Triceps
  • Barbell
  • Isolation

All exercises

Log it in Platesmith. The app shows last time's numbers on every set of Skull Crusher, times your rest and tells you when to add weight. Free, with no ads.

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Muscles worked

MainTriceps brachii

Setup

Keep the upper arms fixed and lower toward the forehead or just behind it.

How to do it well

  • Lie on a bench with the bar over the chest
  • Lower to the forehead by bending the elbows
  • Extend to lockout

Common mistakes

  • Letting the elbows flare wide
  • Moving the upper arms

Free programs with Skull Crusher

Similar exercises

General guidance, not medical advice. Start lighter than you think, and check with a doctor first if you have a health condition or injury.