This is the type of body often seen on such magazine covers as Runner's World. For example, one of the runners suspected that “a lot of people get into ultra because they think it’s going to give them ...

You can start with as little as 20 to 30 seconds of running at a time followed by 1 to 3 minutes of walking for 15 to 20 ...

In Running for Weight Loss: Body Composition, Jennifer Brown and our experts explain: There are many factors that play a role ...

With ideal conditions and strategic pacing and drafting, Kenyan Faith Kipyegon is on the brink of hitting the fabled track and field milestone, a new study suggests. The authors are now calling for a ...