James doesn't look like the "typical" runner - he's 6'6" and 250 pounds. A former professional rugby player, James has a degree in Sport Rehabilitation and is fully insured member of the British Association of Sport Rehabilitators and Trainers (BASRaT).

He's the founder of Kinetic-Revolution and has an ongoing fascination with the functional biomechanics of running (in other words, how you move while running).

In this far-reaching discussion, we talk about quite a few issues:

• Should overweight runners be more worried about injury?
• Is gaining weight more important for injury risk than being consistently overweight?
• Does training for weight loss differ than training for a race? How?

Enjoy my conversation with James (and don't miss the announcement at the end of the show!).