A program can't get any simpler than Beesley's, or any more successful. "I've increased my endurance and my speed, and I've done both without any injuries," he says. "My family members describe me as a very patient man. Patience combined with persistence is a great combination for success in running."

When Beesley began running 2 years ago, he could only manage 30 seconds at a time, followed by 4 1/2 minutes of walking. But he didn't let his lack of fitness discourage him. He simply repeated the cycle eight times (for a total of 40 minutes), and made sure he did three workouts a week.

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Adding a new challenge to your routine could make you a stronger runner. And it's fun too!

So many people abandon those gym-filled resolutions come spring. Here are the tips to keep at it all the way to 2017.

Are you a long runner who wants to increase your cardio endurance for those marathons? Or maybe you're new to running, and you just want to push it and get that first mile or two. Whatever your skill level—whether beginner or seasoned fleet-foot—we'll show you how to take your running to the next level.

This masters runner had no idea where she was headed in the sport when she first started and shares everything she wish she had known.

As runners, we all want to increase our endurance, but we're often referring to two different things. The beginning runner wants to go farther from two miles to four miles, then to six. More experienced runners don't see much point in running farther. (Isn't 26.2 miles far enough?) These runners want to improve their speed-endurance the pace at which they can cover substantial distances.

"Stamina" is the strength and energy needed to exert oneself for an extended period of time. The word most commonly refers to the exertion needed for physical activities like exercise and sports. However, "stamina" can also refer to the mental exertion needed to perform a task or get through a difficult situation. Improving either type of stamina (or both!) is a great choice if you're interested in living and feeling healthier.

Below, you'll find seven endurance-boosting strategies that have worked for a range of runners. Not all will work for you. But one or more will, and that should be enough to significantly increase your endurance, which means you'll run stronger and easier than ever before.

He's obviously doing something very right; he just made his fourth Olympic team at the marathon trials last month.

They seem weird, but they definitely are not when it comes to the success of the country's top runners.

Agility may not be your number-one goal in the gym, but it is the backbone to so many movements.

Adding family members lets ACTIVE find events specific to your family's interests.

Whether you're just starting out or have been logging miles for years, you'll related to all of these feelings.

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In other words, different strokes for different folks. We're not all the same. Genetic researchers refer to "high responders" and "low responders." Sometimes we need to take different paths to reach our goals.

All three runners achieved their goals. Each used a different method. Which raises the point that exercise physiologist Kris Berg explains in his recent article, "Endurance Training and Performance in Runners," in the journal Sports Medicine. "After decades of studying ways to improve endurance," says Berg. "I'm leaning more than ever toward the great gestalt of mind-body wisdom, and encouraging runners to do what feels right."

It can be difficult to figure out how classes and cross-training work in with a marathon or half marathon training program.

This circuit based workout is perfect for the time-crunched runner.

Good news for ClassPass and boutique fitness addicts: it turns out the money you're spending is actually making a quantifiable difference.

Yoga and running can go hand in hand like peanut butter and some super zen jelly.

The best way to get new runners off the couch and across the finish line of their first 5K.

Try these tips to help bump up endurance a notch. With some smart training and nutrition guidance, that Ironman may totally be within reach!

As runners we of course use our legs, but there is another part that can make or break our efficiency.

The gradual-adaptation principle is deeply rooted in human physiology, and has worked for about a billion runners since Paleolithic man started stalking wild animals in East Africa 150,000 years ago. It still works today. Witness Craig Beesley of Moose Jaw, Saskatchewan, Canada.

What you should do: Whatever your present endurance conditioning, build it slow but steady. We like a program that adds 1 mile a week to your weekend long run, for example: 5 miles, 6 miles, 7 miles. Every 4th week, reduce mileage by skipping the long run. Rest and recover. The next week, start building again, 1 mile at a time: 8 miles, 9 miles, etc.

Falling flat during the final mile? Learn how to boost endurance in order to feel super strong when crossing the finish line.

This treadmill + strength training class uses heart rate to build stronger runners.

Thirteen weeks later, Beesley was running 30 minutes at a time, and by last fall he had completed his first half-marathon in 2:12. Pretty impressive. But Beesley didn't stop there. He kept running outdoors through the winter months, despite temperatures that dropped to -25°F, and last spring added speedwork to his routine. By May, he was running long runs of 2 hours, 40 minutes, and doing six 400-meter repeats in 1:45. In his near future: a first marathon.

Fortunately, you can have it both ways. You can follow training plans that build the length of your long runs, and others that improve your speed-endurance.

Using such workouts, thousands of runners have dramatically improved their endurance. Craig Beesley, a beginning runner, extended his longest run from 30 seconds to nearly 3 hours. Doug Underwood, a successful marathoner, wanted to lower his best from 3:50 to 3:30 to qualify for the Boston Marathon. And Deena Drossin, the American 10-K and cross-country star, wanted nothing less than to run the marathon faster than a legend, Joan Samuelson.

Whether you need downtime or have a hard time training in snow, these ideas will keep you fit and happy.

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From cycling, to running, to soccer, to swimming, aerobic exercise requires endurance so athletes can keep on truckin’ without losing steam. But it may not be as easy as running longer, swimming farther, or cycling a century. Here, we lay out some traditional ways to boost stamina along with sneakier ways to keep going stronger, longer.

If there is one overarching principle of endurance-building, this is it. Call it gradual adaptation. That is, be consistent, be patient, and build up slowly. This principle applies to all circumstances and all runners the beginner who's trying to make it around the block four times, as well as the 36-minute 10-K runner who's training for a first marathon with long runs that stretch to 12 miles, then 16, then 20.

On your rest days, these 3 things can help you increase your speed.

Running can be intimidating when you are first starting out.