Workout trends come and go, but when it comes to the biggest bang for your buck, high intensity interval training, or HIIT, has staying power. HIIT’s specific origins are uncertain; some say it dates ...

Side Lunges, High-Intensity Interval Training Outdoors. Time is a precious commodity these days, and carving out a couple of hours for a workout every day or even a few times a week isn't something ...

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

High-intensity interval training (HIIT) can look intimidating to beginners, but we’ve got the perfect routine for anyone taking their first shot at it. There are just eight moves to master in this ...

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

When you imagine a high-intensity interval training (HIIT) workout, high-impact moves like burpees or or jump squats probably come to mind. These are definitely a great way to raise your heart rate ...

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

If you don't have a ton of time to exercise and want to make the most of the few minutes you're able to squeeze in, HIIT workouts are for you. There are minimal rests during HIIT workouts, and even ...

Get ready to work out with trainer Chelsey Cioli, who will be leading this 10-minute beginner HIIT workout while joined by class members Paris Nicole and Poofy Moffitino. In this routine, you'll start ...