What are the benefits of interval training? When we first start running and begin to improve the time we are able to ...

A trainer explains what sprint interval training (SIT) is, along with its benefits, and shares a sample SIT workout for weight loss.

Throwing something different and challenging, like interval training, in your routine is just what you need to get your body burning fat again. How do you start?

Interval training’s stock has soared in recent years. Is it any wonder, when it promises to deliver impressive health and fitness perks in a shorter time frame than other workouts? Sessions can ...

Fitness Friday #3: Interval training Pierre Allard dishes on the most effective way to work out with interval training ...

Is interval training the secret to staying young? Dr. Richard Besser discusses a new study, and trainer Chris Powell demonstrates some high-intensity interval training moves you can try at home.

Researchers sought to explore how high-intensity interval training affected men's hormones and found that in most cases it raises natural testosterone levels.