Equating Treadmill and Outdoor Running

Many runners do their workouts on a treadmill. But can you equate treadmill workouts to outdoor running? The answer is not what you think.

By Matt Fitzgerald

Running Got You Tired? Don't Blame Your Lungs

Think your lungs aren't fit for running? Get the truth about the role of your lungs and what you can do when you're out of breath.

By Jason R. Karp, Ph.D.

Get Fit Fast for an Obstacle Course Race with CrossFit

Can a a former triathlete with absolutely no formal strength training background whatsoever get fit enough to tackle the Ultra Beast in a month? De...

By Erin Berisini

The Forgotten Workout: Long Intervals

Be a better triathlete with long intervals and learn how to do them correctly.

By Matt Fitzgerald

The Secret of Marathon Pacing

Run a better marathon by learning how to pace correctly.

By Mackenzie Lobby Havey

The Long Run: What to Do Before, During and After

The long run is a critical part of every runner's training regimen. Learn what to do before, during and after for peak performance.

By Runner's World

The Running Shoe Lifecycle: How to Buy and When to Toss

No more guessing. Find new shoes, throw old ones away or transition to a barefoot style with these tips and pieces of advice.

By Jessica Sanders

Should You Run by Minutes or Miles?

Runners tend to think in miles rather than minutes. But which is better—to run for distance or time? Here's the definitive answer.

By Jason R. Karp, Ph.D.