Fartleks are a well-known and popular running workout—or at least they’re something runners talk about all the time. The ...

If running in any form – whether it’s your first steps or attempting a marathon – is on your list of fitness goals this year, ...

Sometimes simplicity brings the best results, which is why runners in the know are adding “fartlek” training to their routine ...

But sooner or later, once you get the hang of it, most of us like to find new ways of challenging ourselves — or, at least, ...

Run coaches offer smart strategies on how to move, modify, or skip your longest training run of the week. By Cindy Kuzma Jordan Siemens//Getty Images Whether you’re training ...