Anyone who's completed a marathon will be aware of the physical and mental challenges involved in doing so. A marathon is one of the most punishing foot races on the planet, and just training for such an event can be a daunting prospect. But did you know that a pace-shifting technique exists that involves walking, and which can get you to a marathon finish line in roughly the same time as continuous running? If you're a keen runner preparing for your next marathon, you'll want to know more about Jeffing. But what exactly is this odd-sounding training method, and how does it work?
Click through the following gallery and find out more about this winning way to walk and run.