High-intensity interval training, or HIIT, is the go-to workout modality for anyone who likes to get their heart rate up, strengthen their muscles, and then move on with their day. It focuses on quick ...

Interval training has become very popular these days, thanks to high-intensity interval training, or HIIT. Proponents of this type of exercise say it delivers many of the benefits of a much longer ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. New perk: Easily find new routes ...

Throughout the long history of the sport of running, training innovations have come primarily from athletes and coaches, not scientists. With few exceptions, it’s been the folks in the trenches who ...

The phrase “putting the hammer down” commonly refers to drivers smashing the accelerator pedal to pick up a burst of speed, often to beat a waning yellow light. Runners use this idiom in much the same ...

Now she’s helping others find their fitness grooves with the Ready Set Sweat program. “The RSS workout is really based on Tabata and high-intensity interval training techniques,” shares Coleman. “I ...

Interval training’s stock has soared in recent years. Is it any wonder, when it promises to deliver impressive health and fitness perks in a shorter time frame than other workouts? Sessions can be fun ...

How training affects cells is determined not only by whether we move at all, but also by how intensely and for how long we do ...

The festive season can throw our exercise routines out the window. You might be staying somewhere different, with no access ...

Once upon a fitness goal, a young girl spent hours upon hours on the treadmill, one 30-minute steady-state workout at a time. She wanted to lean out -- aka lose body fat to improve muscle tone -- and ...