Like other HIIT workouts, the Norwegian 4x4 consists of brief spurts of high-intensity exercise interspersed with active ...

Participation in once-popular HIIT workouts is flagging. But experts say it’s still one of the best types of exercise you can ...

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 hallmark of HIIT is repeated bouts of extremely hard work interspersed with periods of recovery. During your work intervals, you’ll be pushing yourself nearly to your max, Noam Tamir, CSCS, ...

This article explores Barry's Bootcamp, the intense HIIT workout favored by supermodels and celebrities. It details the class ...

HIIT workouts, or high-intensity interval training, are one of the best ways to exercise at home — no extra equipment necessary.

HIIT workout founded by a Japanese Olympic coach that uses periods of intense exercise and rest to burn calories.

Sheehan echoes similar sentiments. "The intensity is what matters, not the clock. A focused 10-minute HIIT workout can spike ...

"Plan for one upper-body, one lower-body and one full-body strength session per week, lasting 35 to 45 minutes each. Any more ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. You’ve got a lot of choices when it comes to weight loss ...

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

Try this knee-friendly 35-minute workout, requiring no equipment, designed to burn calories and build strength safely.