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

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

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

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

Presented by Athleta, this HIIT workout is basically a guaranteed confidence boost. Celebrity trainer Amanda Butler leads you through two different rounds of full-body interval training, helping you ...

Perfect for all fitness levels — this 20-minute HIIT workout combines power and endurance to sculpt your body fast!

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." High-intensity interval training (otherwise known as HIIT) may sound, well, intense. And it can be. But ...

When it comes to getting enough exercise, everyone searches for something that speaks to them. Some people love the quiet solitude of jogging alone while others prefer the competitive element of team ...

This Halloween, forget the tricks — it’s all about the treats for your body! Planet Fitness is showing us a Haunted HIIT ...

The cardio world has split into two passionate camps that argue with the intensity of people debating pineapple on pizza. On one side, you have the HIIT devotees who swear by short, brutal workouts ...

So much messaging for women around doing sprint or HIIT training suggests a rigid framework where you go a certain number of ...