Skull Crusher (Barbell)
Also called Barbell Skull Crusher, BB Skull Crusher, Lying Tricep Extension (Barbell), Lying Triceps Press (Barbell)
How to do it
Lie on a bench holding an EZ-bar or straight bar over your chest with a narrow grip. Keep your upper arms fixed as you bend your elbows to lower the bar toward your forehead or just behind your head, then extend to full lockout. Control the return and keep your elbows from flaring.
Setup
Lie on a flat bench with an EZ-bar or straight bar held above the shoulders in a narrow, even overhand grip. Keep wrists straight, upper arms angled slightly back, and elbows aimed forward.
Where you should feel it
Through both triceps as the bar lowers near or behind the forehead, with the front shoulders holding the upper arms steady. Keep the elbows from spreading.
When to use it
Use for progressively loaded lying triceps strength and hypertrophy. An EZ-bar and controlled sets of 6-12 reps are usually elbow- and wrist-friendly.