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.

Build a powerful upper body with the bicep curl to overhead press.

It all depends on your gender and body fat levels.

Here’s what the research has to say about lower arm size.

They certainly were for this gentle forearm giant.

Or are they a complete waste of your gym time?

The definitive guide to better baseball forearm training.

The ultimate evidence-based guide to forearm blood flow restriction training.

Discover what’s possible with different genetic abilities.

Learn how to get bigger forearms at home naturally.

Discover the optimal forearm training frequency according to science.