Skull crushers: If you're looking to

If you're looking to work your triceps in particular, you'll find skull crushers are a good way to do it. This exercise uses gravity to specifically work this area, so start by learning the basic technique. You can switch things up a bit to work your lateral or long head muscle in your triceps. Skull crushers are a tricep-focused upper body push exercise that works all three heads of the tricep, but the long head is the primary muscle worked. Skull crushers can be done using dumbbells, barbells, and resistance bands. The dumbbell skull crusher exercise (or the Triceps Extension) is a tried-and-true triceps exercise intended to develop that horseshoe-shaped muscle on the back of the arm. Want bigger, stronger triceps? Find out how to do skull crushers safely, the muscles worked, pro tips, common mistakes, and the best exercise variations.