HIIT workout founded by a Japanese Olympic coach that uses periods of intense exercise and rest to burn calories.

If strong, toned abs are your goal, this simple, fast, four-minute Tabata core circuit will get you there, but be prepared to sweat for it. Tabata is a form of high-intensity interval training (HIIT) ...

High-intensity interval training, HIIT for short, is one of the best kinds of sweat sessions if you're looking to get your heart rate up and work your muscles to their fullest capability in a short ...

Fast-paced, high-intensity interval workout — 20 seconds of torture followed by 10 seconds of rest, basically. Each set lasts for a total four minutes, then you get a one-minute break before moving ...

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

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The Peloton instructor also tells PEOPLE how she stays motivated and confident in her own workouts on and off of the bike Tunde Oyeneyin may be known as one of Peloton's most challenging instructors, ...