How to run at the speed of a Kenyan...it's mental

... well, kind of.

It's the latest on Chasing Kimbia, in which the Kenyans' German coach explains what his boys do and the how and why of it.

Host Matt Taylor explains: "This week Dieter answers the question, “When you tell the athletes to run at ‘Speed1? or ‘Speed 2? or ‘Speed 3? what exactly does that mean?” In brief, the “speed” assigned for a given workout represents the mental effort required by the athlete, instead of a particular pace. It’s a very simple system that makes communicating with the athletes very clear."

Check it out: Dieter speaks here.