Treadmills make running convenient — even more so when you've got a machine in your home and bad weather is threatening your workout schedule. It's also true that running on a treadmill can be a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." IF THE WORD "fartlek" makes you giggle, you're not alone. But there’s nothing funny about how this style ...

Hearing about a workout called a “fartlek” for the first time as a new runner might be intimidating and confusing. That’s because most terms, like “long run” and “speed workout,” are pretty ...

If the word "fartlek" makes you giggle, you're not alone. But there’s nothing funny about how this style of training can help runners—especially beginners—level up to faster speeds. The idea of ...