Exercise library · Arms
Skull Crusher (EZ Bar).
Isolation triceps extension performed lying down.
IntermediateEZ Bar

The numbers
Sets
3–4
Reps
8–12
Rest
45–75
Muscles
Primary
Triceps
The play-by-play
How to do it.
- Step 01
Lie flat holding EZ bar over chest
- Step 02
Lower bar to forehead by bending elbows
- Step 03
Keep upper arms fixed
- Step 04
Extend elbows to press bar back up
- 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