People tend to do these as a finisher with only bodyweight. But these are a great resistance exercise for working all 3 heads of the triceps.
How do you isolate the long head of your tricep?
Do skull crushers work the long head?
Skull Crushers Muscles Worked
Lowering the bar to your forehead primarily works the medial and lateral heads of the triceps. These are the muscles on the inside and outside of the back of your arm. While lowering the bar over your head works primarily the long head of the triceps.
Do tricep pull downs work the long head?
The triceps brachii muscle is located at the rear of the upper arm and has three components: the long, lateral, and medial heads. If you want to build up your arms, working all three heads of your triceps is key, and the triceps pulldown does just that.