Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. If you haven’t rewatched the epic ...

HIIT, or high-intensity interval training, is increasingly popular, and it provides plenty of benefits, from torching calories to increasing your VO2 max and overall athletic performance. SIT, or ...

There's a good reason why the military and law enforcement are now testing speed and agility. The ability to run fast without injury requires practice and a steady dose of maintenance work. Whether it ...

When people say they need to get faster at running, it can mean multiple types of running workouts required to build a base of endurance, a set mile pace and sprinting as fast as possible. The ...

A Junior Olympian is turning heads for reaching a remarkable sprint speed while training at a performance gym in Houston, Texas. Eight-year-old Jayce Wilson is captured on video hitting a speed of ...

Your running speed partly comes down to factors you can't control, like genetics, and partly relies on your training. When you purchase through links on our site, we may earn an affiliate commission.