Interval Training

Add these bread-and-butter interval workouts to your running repertoire to boost speed and endurance.

There's no getting around it: Hill training is rough. But if you do it correctly, it's worth it.

Sharpen your speed and build high-intensity fatigue resistance with this simple cut down track workouts designed for improving 5K, 10K, half marathon, and marathon times

Advanced training methods proven effective by scientists, coaches, and athletes.

This simple but challenging interval session hones control and toughness by kicking your butt if you get the pacing wrong.

Quicker recovery intervals help runners learn how to better deal with the byproducts of fatigue, along with other performance benefits.

Elle Purrier's coach, Mark Coogan, explains the gradual buildup of a big aerobic base for the American record holder.

Why runners should add indoor cycling to their training and proven workouts to build strength and speed.

New research supports what many runners do naturally, instead of the conventional wisdom that you should stay upright.

If you're coming off a spring racing season and have a strong base, these workouts are for you.

We all kind of dread the oval, but it doesn't have to be a suffer fest.

These songs will make your interval workout fly by!

Don't have time for that two-hour jaunt? Try one of these quickies.

When it comes to torching calories, interval training is as hot as it gets.