Target muscle: Triceps Brachii
Force: Push Starting position
Lie on your back (supine) on a flat bench.
Dismount the barbell using a pronated (overhand), shoulder-width grip.
Keeping your upper arms vertical, inhale as you lower the barbell toward your forehead in a smooth, semicircular motion by flexing your elbows.
Exhale as you reverse the movement and push the barbell back up to the starting position by extending your elbows.
Repeat for the prescribed number of repetitions.
Comments and tips
Keep your shoulders fixed and upper arms vertical. All of the movement should be in your elbows.
Do not allow your elbows to flare out, as this will allow your pectoralis major and anterior deltoid to get involved, which will take the emphasis away from your triceps brachii.
For obvious reasons the barbell skull crusher can be dangerous. Start light, add weight gradually, and always keep the movement under full control.
Compare the barbell skull crusher with the
lying barbell triceps extension and barbell JM press. Barbell skull crusher video