Exercise library · Arms

Skull Crusher (EZ Bar).

Isolation triceps extension performed lying down.

IntermediateEZ Bar
Skull Crusher (EZ Bar)
The numbers
Sets
3–4
Reps
8–12
Rest
45–75
Muscles
Primary
Triceps
The play-by-play

How to do it.

  1. Step 01

    Lie flat holding EZ bar over chest

  2. Step 02

    Lower bar to forehead by bending elbows

  3. Step 03

    Keep upper arms fixed

  4. Step 04

    Extend elbows to press bar back up

  5. Step 05

    Repeat carefully

What separates good from great

Pro cues.

  • Use spotter for safety

  • Don't flare elbows outward

  • Stop short of locking elbows harshly