Working your upper-body doesn't have to be a chore, with hours spent at the gym. Instead, you can use this routine to raise your heart rate and work muscles across your entire body, all using just a ...

If you want a tried-and-true workout that will guarantee to leave you dripping in sweat, you can always rely on the Tabata. If you want a tried-and-true workout that will guarantee to leave you ...

The concept of high-intensity interval training, also called HIIT, has been around for decades. As the name implies, HIIT workouts involve short bursts of very intense exercise, separated by short ...

Equinox group fitness instructor Raneir Pollard is back with an advanced HIIT workout that will challenge every major muscle in your body and then some. This 30-minute workout consists of five rounds ...

Used by elite athletes in Olympic-level sports, Tabata training is a form of HIIT training that Izumi Tabata developed at the National Institute of Fitness and Sports in Japan in the early 1990s. He ...