For fitness enthusiasts who need a little cardio variety, HIIT (or high-intensity interval training) has long been a popular choice. According to a study in Biology of Sport, HIIT — which pairs short ...

This 4-minute routine is designed to push your heart rate up, engage multiple muscle groups, and maximize fat loss. Unlike ...

Your boring workout is secretly sabotaging results try HIIT for faster fat loss muscle gains and nighttime metabolic burn.

Jennifer Garner, who’s been open about doing intense physical training for certain roles over the years, recently showed a ...

The most sustainable systems recognize that professional demands fluctuate cyclically, creating corresponding fitness seasons ...

Hop on the stair climber and warm up with an easy pace for 3 minutes. Then move through three progressively harder blocks of ...

Many people don’t have the time for long, drawn-out workouts and HIIT training is quick but powerfully effective. In 15 to 20 minutes, you can reap as much benefit as a 45-minute steady-state ...

A trampoline workout can get your heart rate up, boost strength, and improve your balance. Here's what happened when I did it ...