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

HIIT workout obsessives, have no fear: this trend is in no danger of waning. Over 12k of you Google it monthly, and it's now practised by the likes of Beyoncé and Jessica Alba, but it's been around ...

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 involves performing an all-out, exhaustive physical effort for a short time followed by a short (sometimes active) recovery. Its benefits are clear: Effective HIIT ...

Looking for a workout that has speed, strength, and power wrapped into one? Try high-intensity interval training (HIIT), a method that packs a punch in a shorter amount of time compared to other ...

"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 ...

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

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 ...

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 ...

Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

Of all the fitness trends that defined the '80s, step aerobics ruled the home workout scene. While gym bros were busy pumping iron, this was the original way to “get your steps in.” Though step ...

If you don't like HIIT, you don't need to do it to see results. Here's why trainers say steady state training might be a better fit. HIIT, or high-intensity interval training, might be one of the most ...