Skull Crusher (Cable)
Also called Lying Triceps Extension (Cable), Cable Lying Triceps Extension
How to do it
Lie on a bench facing away from a low pulley and hold a straight-bar attachment over your chest with a narrow overhand grip. Keep your upper arms fixed as you bend your elbows to lower the bar toward your forehead, then extend to full lockout and return slowly without flaring your elbows.
Setup
Place a bench in line with a low pulley and hold a straight or angled bar above your shoulders with a narrow overhand grip. Keep wrists straight, upper arms fixed, and cable tension at the top.
Where you should feel it
Through both triceps during the extension and continuous return, with the front shoulders stabilizing the upper arms. Avoid elbow flare or letting the stack rest.
When to use it
Use for lying triceps hypertrophy with continuous tension and easy load changes. Controlled sets of 8-15 reps work well.