But if you find yourself wondering, "What is HIIT?" as in, what is an actual HIIT workout like, these pro tips from certified trainers who specialize in teaching the technique will help you crush your ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." WHETHER YOU'RE A group fitness junkie or just exercising to be healthy and active, you've doubtlessly ...

High-intensity interval training, also known as HIIT, is a great way to improve your overall cycling performance. Working through short bursts of intense efforts, followed by brief rest periods, can ...

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 ...

But how many of these sessions do runners need to do each week to get a meaningful aerobic boost? The answer, according a new ...

Sure, it takes time to see major payoffs from working out, whether you're looking to build muscle, lose weight, or improve your general health. But exercise does offer some forms of instant ...

Those mid-class sprint intervals are tough. But experts break down whether they really get you ready for race day.

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 ...

You can always rely on a high-intensity workout to leave you feeling sweaty and exhausted. But a longer workout isn't necessarily better. And a new approach that's gaining fans on social media only ...

As the temperature drops, low-impact cardio workouts can be the way to get your steps in and heart rate up from the comfort ...