VO2 max is your body’s ability to use oxygen when you increase your effort. The higher it is, the more you can maintain a fast pace before things start to fall apart. VO2 max is ...

You wouldn’t ask a first-time marathon runner to do a 20-mile long run with tempo miles in the middle. For a newer runner, that could put too much strain on the body too soon in ...

Runners all have different goals. But one goal that’s common for all is running for an entire race or workout. Sometimes that means shaving a couple of seconds, or perhaps minutes, off their current ...

IF THE WORD "fartlek" makes you giggle, you're not alone. But there’s nothing funny about how this style of training can help runners—especially beginners—level up to faster speeds. The idea of ...

Few things are more coveted by endurance athletes than the so-called "runner’s high." It's that feeling of euphoria, reduced stress and sharpened mental clarity that can emerge when aerobic exercise ...

Many fitness tests include speed and agility in addition to endurance runs. You need a good workout to take to the track to develop speed and strategies for these shorter-but-faster events. No longer ...

Sometimes I fear my running career has plateaued. Well, not my career, but my pace. I lace up four or five times a week, push hard enough to feel pleasantly wrecked, watch my mileage climb steadily ...

Runners enjoy lacing up their shoes and running. The endorphin rush felt after a long run or interval session can't be beat. But sometimes, injuries can keep us from doing what we love. What if there ...

You probably already know that running is a stellar form of exercise. It provides a host of health-boosting benefits, including improved heart function, boosted mood, and reduced risk of a bunch of ...

If you were inspired by theLondon Marathon and want to up your exercise game, it’s easier than you think to start running.

Few things are more coveted by endurance athletes than the so-called "runner’s high." It's that feeling of euphoria, reduced stress and sharpened mental clarity that can emerge when aerobic exercise ...