Running

The 20-year-old athlete became the first woman to enter the marathon, and officials tried to physically stop her. They couldn't.

By Christopher Hassiotis

You're running or biking, but you're quickly running out of steam. Then suddenly — BAM — you get a rush of energy. What's going on?

By Maria Trimarchi

Long-distance running is inherently challenging and requires strength and endurance. Try running a 26.2-mile race backward, and you've added even more challenges to the feat!

By Laurie L. Dove

Barefoot running continues to be debated among runners, but what if you want just a little protection for your tootsies? Scope out your options and find out about barefoot running shoes.

By Nathan Chandler & Craig Haggit

As far as places to go for a walk, Hawaii is a tough one to top. The Honolulu Marathon has no time limit, offers awards in the racewalk category and even features a festive pre-race luau to boot. What are five of the world's best walk-friendly races?

By Julia Layton

Running 26.2 miles (42.2 kilometers) isn't an option for most people -- many people don't even like driving that far. But for you long-distance runners looking for the ultimate challenge, check out our list of the world's biggest marathons.

By Emilie Sennebogen

Each spring, serious runners from around the world travel to Richmond, Va., for a shot at a personal-best time on the friendly and flat course of the Monument Avenue 10K. But, aside from the actual competition, the event draws thousands of participants and spectators looking to take part in an atmosphere that includes costumes and roadside bands.

By Joanna Burgess

So, you're thinking about running a 5K race. If you've never run one before, those 5 kilometers might seem incredibly daunting. But countless others have done it before, and just a little bit of advice can help you get off of the couch and through the finish line.

By Meghan E. Smith

We've all read about the positive health benefits of running. But despite articles, statistics and a pair of shoes right by the door, it's hard for some people to get going. There are a few tricks dedicated runners keep up their sleeves in order to stay focused, and they might work for you, too.

By Michael Franco

Even though we know running is a healthy activity, it's still easy to resist. Luckily, seasoned runners have a bunch of tools for maintaining the inspiration to run.

By Nathan Chandler & Sara Novak

Proper running form not only helps you comfortably boost your speed and endurance -- it also helps you prevent injuries. What does bad form look like, and how you can avoid it?

By Lance Looper

Gone are the days that strength training was only for bodybuilding. Buff, macho men "maxing out" on free weights have been replaced with health nuts lifting weights to stay fit. But does strength training actually help your heart and lungs?

By Sara Novak

Running exercises more than just your legs. If your stomach muscles aren't in shape, you won't be able to set your best pace. What kinds of exercises will help you strengthen those abs?

By Nathan Chandler

You've mastered the 10K, now you're ready to compete. But running to complete the race is different from running to win it. How do you change your training habits to help you compete?

By Josh Briggs

Out of fear, need for food or fun, humans have been loping long distances since the beginning of time. But we still need to train for a 5K. How's it done?

By Nicholas Gerbis

Although the first marathon was run 2,500 years ago -- and its lone participant died in the process -- long-distance running has never been more popular. AIMS coordinates thousands of races around the world at a variety of distances, from fun runs to marathons.

By Dave Roos

To your left is a team of Elvises. To your right is Spongebob Squarepants. And up ahead, well, someone is nude. Welcome to San Francisco's infamous 12K race -- the Bay to Breakers.

By Clint Pumphrey

The same material that boings bungee jumpers from bridges is used by runners to increase muscle strength. How will this type of resistance training improve your running performance?

By Debra Ronca

If you easily get bored with workouts, the variety involved in circuit training may appeal to you. What exercises are used in circuit training to spice up the routine?

By Victoria Vogt

Late-night infomercials advertising ab-strengthening rockers, loungers and workout DVDs insist that all you need are six-pack abs. But core strength training for runners goes beyond sculpting a washboard stomach. What can a strong core do for you?

By Victoria Vogt

First-time and even experienced marathon runners know it all too well: the feeling that hits around mile 20 when your legs begin to give way and you feel as if you would die if you moved another step. What's going on here, and what can you do to avoid it?

By Kevin P. Allen

If you run 15 to 40 miles per week, you're an intermediate runner. If you'd like to increase your speed for your next 5K, how should you train?

By Meredith Bower

Interval training mixes up high- and low-intensity exercises to help boost stamina. How is alternating speeds better for your body than working out at a continuous pace?

By Thorin Klosowski

Crossing your lactate threshold during a race can cause you to feel exhausted and decrease your pace. So how do you increase your lactate threshold in training?

By Melissa Sandoval

If you're a runner, that doesn't mean you get out of exercising your legs -- strong leg muscles are especially important for runners. How do leg workouts help improve strength and stamina?

By John Kelly