Sort of. Sprinting is essentially explosive resistance training using your own body weight, so every sprint activates your ...

Jason Kelce might be retired, but the man clearly hasn’t slowed down. The 37-year-old former Philadelphia Eagles center ...

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 ...

If you're frustrated with stubborn belly fat and tired of workouts that don't deliver results, it's time to shift your ...

No time to work up a sweat? Try Kristen Bell's go-to workout that only takes a few minutes of your day. “I don’t have an hour and a half—I have 25 minutes, max. I sprint up my driveway, walk back, ...

REHIT is also ideal for people who are experiencing a weight-loss plateau, Mansour says. If you do a lot of high-intensity workouts without much rest, you're likely taxing your body more than you need ...

Derrick Henry continues to defy Father Time — or at least the NFL’s version of it for the running back position. The 31-year-old has quieted those who believe that running backs hit a decline at age ...

Like other HIIT workouts, the Norwegian 4x4 consists of brief spurts of high-intensity exercise interspersed with active ...

Going the distance in a professional boxing match requires a supreme level of fitness. Some of this is built in the ring, but ...