It combines strength and cardio into one total body sweat session.

Warmup: Do each warmup exercise for 30 seconds, and repeat the warmup circuit a total of three times. Then take two minutes to work out any kinks you're feeling with some dynamic stretches for you ...

HIIT—which stands for high-intensity interval training—is, simply put, a type of workout that alternates between hard (high-intensity) and easy work. "During this workout, you spike the heart rate to ...

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.

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 ...

They’re so easy to incorporate into your week.

This 22-minute HIIT and strength workout will give you your daily dose of cardio and muscle building—no equipment required. As any trainer will tell you, a solid workout routine includes a mix of ...

If you've gotten bored doing the same workouts over and over, we recommend switching up your routine ASAP. One way to do this is with quick high-intensity workouts. A great way to do this is with ...

Here's a quick and intense cardio workout that will spike your heart rate and build muscle. It'll only take you 30 minutes or less, and it's varied enough that it'll also keep you (and your muscles) ...

Even super-fit trainers have to work out to maintain their muscular physique. So when it comes to effective workouts, we’ll have what they’re having. Forzaglia developed this 10-minute HIIT cardio ...