Torch your muffin top with 9 expert-backed HIIT moves that burn fat, boost metabolism, and sculpt your waist in 15 minutes.

High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts are so efficient because they alternate short bursts of very intense ...

In TODAY.com's Expert Tip of the Day, a trainer explains how incorporating HIIT into a weekly workout routine can boost one's ...

High-intensity interval training (a.k.a., HIIT) is a triple threat: “It’s quick, easy, and effective,” says Angela Gargano, a certified trainer and creator of Strong Feels Good & Pull-up Revolution.

Credit: Shutterstock If you’ve ever done a high-intensity interval training (HIIT) workout, you know it’s no joke. Sprints, ...

We all grow older. There is nothing we can do about that, but the quality of those years is within our control, as recent ...

The best HIIT exercises vary from person to person. Building a routine suited to your individual preferences, abilities, and fitness goals is the key to success. High intensity interval training (HIIT ...

Done correctly, high-intensity interval training is one of the most efficient forms of exercise. Here’s how to do it. By Amanda Loudin Workout trends come and go, but when it comes to the biggest bang ...

A new study shows you can get the benefits of a high-intensity workout by doing five common exercises, no gym or equipment required Nov. 4 at 6:00 a.m. Stuck for time or space to exercise? A newly ...

Sure, running is just as easy as putting on the right shoes and heading outside, but once you get into it, you start to see information in the form of acronyms, such as DNF (did not finish), FKT ...