James Jackson

James Jackson is a personal trainer who uses his expertise in strength and conditioning to create helpful workout tutorials that show fitness enthusiasts how to build muscle while staying safe in the gym. He draws on the latest sports science data as well as tried and tested training techniques to get the best results for his clients without them having to live in the gym.

Learn all the differences between wide grip and close grip skull crushers and find out which one is best for you.

Learn how to do a TRX skull crusher with the optimal tricep-building technique.

Here’s how to bulk up your triceps with standing skullcrushers.

Learn the key differences between these two common tricep exercises.

Learn whether you should do skull crushers or cable pushdowns for maximum triceps mass.

Here are the best skull crusher alternatives after trying over 50 replacements.

Are you making these 5 skull crusher form blunders?

Discover how to do dumbbell skull crushers with the optimal tricep-building technique.

Discover the 5 pros and cons of BB skull crushers.

Discover the 7 most effective decline skull crusher variations.