High-intensity interval training, or HIIT, is a great way to get in a fast, effective workout. This quick routine is helpful ...

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 ...

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 ...

Lack of time is often the main reason people don't exercise regularly. But a type of interval workout recently popularized by ...

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 ...

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 ...

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 ...

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 ...

Every new year comes with big intentions — and the quiet fear that I'll end up doing exactly what I did last year.

Pre-workout nutrition, workout prep—whatever you call it—has changed, and what you consume in the hours before exercise ...

Scientists say this is the best exercise for reducing body fat in elderly people - High-intensity interval training, or HIIT, ...