Endurance

You Don't Have to Do the Same Slog Every Year

There's a boom in offbeat races—gravel grinders, obstacle-course runs, cyclocross events—so it's never been easier to experiment with a new sport. Here's how to decide which one's...

The Outside DIY Training Plan

If you’re in any sort of shape, you can probably jump off the couch and huff your way through a local trail run, obstacle race, or 10K. Of course, there are more effective approaches. Your...

30-Minute Holiday Workouts

“A 30-minute workout can be a great way to mentally take the pressure off of feeling like you are working out,” says your coach, Gina Kehr, a...

The Single Fitness Stat You Need to Know

Elite endurance athletes and exercise physiologists have long known that VO2 max may be the single greatest determinant of athletic performance. But few recreational athletes have access to the...

Is Any Amount of Sugar Safe?

It's official. Sugar is killing us—and our economy. With the average American eating 40 teaspoons of the sweet stuff a day, the related health care costs have reached a...

The Paleo Endurance Secret

One of the central principles of competitive endurance exercise is that when your muscles can’t get enough glucose you...

Who You Callin' the 'Slowest Generation'?

Truth is, I’ve never run a marathon, much less raced one. I’ve thought about it—pounding the pavement mile after mile through city streets... yawn....

When Exercise Turns Deadly

The scientific evidence supporting high-intensity exercise is very solid. This is true for elite athletes, people who are just

Why You Need to Be Doing Burpees

What is the best predictor of when you’ll die? That seems like a hard—not to mention morbid—question, but, incredibly, study after study is showing that simple tests of...

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