High-intensity interval training, or HIIT, is a great way to torch calories, boost your metabolism and get a great workout in a shorter amount of time. And if you're a fan of hopping on the treadmill ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's ...

Steady-state cardio focuses on keeping a consistent, moderate pace, while HIIT uses short bursts of hard work and short bursts of rest.Steady-state cardio is easier to sustain and may lead to more fat ...

Advanced kettlebell HIIT combines explosive strength work with high-intensity cardio for a demanding full-body workout.

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 ...

We're definitely fans of exercise snacking, but sometimes nothing but a long, sweaty workout will do — and if that's what you're craving, this 45-minute high-intensity interval training workout with ...

As HIIT's popularity soars, sprint interval training, or SIT, is doing its best to catch up. Can shorter, harder, faster deliver better results? As the popularity of HIIT continues to soar, sprint ...

YOU KNOW YOU need muscle... and you need to burn calories. Everyone needs more strength, too—and we can all use a little more athleticism. But you don’t have hours upon hours upon hours to chase all ...

Exercise is known to benefit heart health. High-intensity interval training (HIIT) that combines aerobic exercise with ...

Every so often, a new type of workout seemingly takes the fitness world by storm. The latest in this long line of buzzy fitness fads: the Norwegian 4x4 workout, a high-intensity interval training ...

This most recent episode of Good Moves features trainer Traci Copeland and her awesome, challenging, and quick total body HIIT workout. In this most recent episode of Good Moves with Pilates and ...

These workouts also burn calories and improve fitness. One of Porcari’s studies found that the average boot-camper expended ...