Despite high ratings among our testers, staff, and even my PT, I never laced up an Endorphin Speed that I liked—until now. I chalk up my distaste of the first three Endorphin Speeds to their fit. Past ...

Few of you are coming to me with a focus on your one mile pace, so we’re looking at running workouts that are going to test your speed and improve your endurance. There are tons of ways to incorporate ...

Marathoners generally don’t lose any sleep over how fast they can sprint, nor do they spend time developing their top-end speed. But Veronique Billat, a French exercise physiologist and author of The ...

Achieving a faster pace can be a thrill for runners, and it also happens to be great for your overall health. "We get stronger, faster, fitter, and leaner when we introduce a new stress, like speed ...

The Swedish word for ‘speed play’, fartlek is one of the most common training sessions that I use with my athletes. The history of fartlek training dates back more than 80 years, when coaches and ...

If you’re a new runner looking toward an (eventual) longer-distance race, or simply want to bring down your personal best time, how to run faster might be a top question on your list. And if that’s ...