It goes without saying that running uphill comes with added difficulty. There are few things quite as daunting as facing a looming hill as you try to maintain your speed and stamina. If you're a trail ...

At an endurance research conference in England back in 2015, I saw a surprising talk by a guy named Guillaume Millet. Longer races sometimes produce less muscle fatigue, he said. Running inefficiently ...

If you're wondering what it takes to climb efficiently up hills, or even mountains, in races or on your weekly trail runs, we've gathered some advice from two of the best. Brandy Erholtz, from ...

The Local newsletter is your free, daily guide to life in Colorado. For locals, by locals. Standing atop a 14,000-foot peak this summer, having nimbly navigated high alpine terrain in thin air, you’ll ...

Running uphill on steep inclines is never easy, but researchers at the University of Colorado Boulder have discovered a range of slope angles that would allow an athlete to ascend a mountain most ...

If you’ve ever forced yourself out for a jog on busy pavement or suburban sidewalks and loathed every hard, unforgiving stride, then you might be more suited to trail running. Trail running has gained ...

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 ...

While hill workouts and hills sprints sound interchangeable, they’re actually different things. Both are massively beneficial. Today we want to give you concrete ideas to get out and start building ...

As a loud and public complainer, I will shock no readers by announcing that I absolutely hate uphill sections. They loom large in my nightmares, and also in my most common trail running routes. That's ...

My childhood home is situated smack in the middle of a hill, so going out to get the mail as a kid meant a near-vertical slog, and walking the dog involved either dragging a reluctant border collie up ...

Most consistent runners are primarily interested in three things: getting faster, being able to run longer without getting injured, and running farther. These objectives help maintain motivation and ...