Wrists break under the supinated load
Wrist extensors fatigue during the supinated skull crusher; lighten the load.
Overactive muscles
Wrist flexors
Corrective work
StretchWrist extensor stretch↗Push · Upper Body
EZ-Bar Skull Crusher (Underhand Grip)
Coaching cues
- Lie flat; EZ-bar held with a supinated grip on the outer angled portion
- Lower toward the forehead with the palms-up grip — increased long head emphasis
- The underhand position shifts the angle of pull on the tricep long head
- Extend to full lockout; lower under control — 3 second eccentric
Common faults 2
Elbows flare wide
Long head stimulus is lost; lateral head and chest take over.
Overactive muscles
Pec majorAnterior deltoid
Corrective work
Foam RollPectorals↗StretchDoorway pec stretch↗