Dumbbell skull crushers are an isolation exercise that targets the triceps brachii, the muscle on the back of the upper arm. They are performed by lying on a bench with dumbbells in each hand, with the elbows bent and the dumbbells positioned behind the head. The dumbbells are then lowered until the elbows are fully extended, and then raised back to the starting position.
Dumbbell skull crushers are a great way to build triceps strength and mass. They are also a good exercise for improving elbow stability and range of motion.
