"Pronation" may sound like a country inhabited entirely by paid athletes, but it's actually a concept that all amateur runners need to understand. The word refers to the way your foot rolls as it hits the ground, and understanding your pronation type is crucial when choosing a pair of running shoes.

Are you an overpronator or an underpronator? And why does it matter? To find out, read more.

Everyone pronates, since the term refers to the way your foot progresses during a stride, from heel impact to toe push off. But as your foot rolls forward, it can also roll sideways, and that determines the kind of pronator you are.