Ask a group of runners whether they’d rather run on a treadmill or outside, and you’ll probably get some very strong opinions. Some can’t stand the boredom of indoor miles, while others love the ...

Summer running sometimes offers up a serious challenge. As temperatures climb into the 80s, 90s, and even triple digits, your body has to work overtime just to stay cool—at the expense of your pace ...

When cold, dark, rainy, or icy conditions make it tough to get outside, the obvious option is to hit the treadmill. The good news: Doing speed workouts on the treadmill makes the time seem to fly by ...