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New research explores why you go slower and feel worse, even though you’re pushing as hard as usual

Wouldn't it be great if there was a technique that would allow us to vanquish fear and beat back stress? 

New research on mental fatigue suggests that even elite runners perform worse after a 45-minute computer task

Last week a paper suggested that runners and cyclists need much more than six feet. The report went viral, and backlash ensued. But there was some legitimate science behind the claims.

Build strength, train cardio, and break a sweat at home with minimal equipment

New research suggests that the lactate produced by hard interval workouts alters the hormones that determine your appetite

So-called "flush drownings" lack an obvious cause like getting trapped underwater. Researchers now believe water temperature is a key factor.

Sean MacCormac says the keys to his success are ballet and breathing through the panic

Simple steps every runner can take to keep things fresh, build momentum, and reach goals.

Tricks to making your home workout as easy—and productive—as possible

8 minimalist strength exercises from alpinist Anna Pfaff, for when you're waiting out the weather—or a pandemic

Build explosive power with this simple routine from professional athlete Braydon Bringhurst

Train like a pro with these safe and simple hang-board workouts

Develop explosive power and speed by training muscles to produce maximum force in the shortest possible time with these plyometric exercises

Some sports scientists believe that a measure called the "acute-to-chronic workload ratio" can predict your risk of injury. But critics aren't so sure.

Jeremiah Bishop is still riding strong and staying healthy without a spring race schedule

For endurance athletes, new research suggests that different pre-race rituals, or even no warm-up at all, give pretty much the same results

'Session with the Best' showcases two top climbers, Sean Bailey and Nathaniel Coleman, as they practice at the USA Climbing Training Center

Our writer tests out a novel “natural performance enhancer”: breathing through your nose. It's harder than it sounds.

This world champion says you can get into surf shape without ever catching a wave

Build your balance with this essential workout—no beam necessary

Nobody gets a free pass to sit all day, but new research on how sitting affects your arteries offers some encouraging news for cyclists

If you're cooped up indoors and looking to move your body, try one of these routines

Russian women got slower after the Athlete Biological Passport was introduced in 2012. Anti-doping officials think they know why.

Tinker Juarez continues to compete against—and beat—athletes half his age

New lab data from a record-setting 59-year-old offers insights on how we age—and, potentially, how to avoid it

The ice climber, kayaker, and paraglider continues to explore uncharted territories into his fifties

In a new column, Dr. Brian Cole answers readers' questions about over-the-counter meds and weak ankles

New technology is striving to make it happen

Angela Madsen, a three-time Paralympic rower, has a new goal: becoming the oldest woman to row from Los Angeles to Hawaii

Humans were born to dive, according to some scientists, and that fact helps us thrive at high altitudes

Follow this routine to keep your hips happy, reduce pain, improve athletic performance, and prevent further injury

A wilderness medicine expert and former AT thru-hiker shares her tips for tackling a long-distance backpacking trip

Pretty much every elite endurance athlete trains in mountain air or the altitude-tent equivalent. But a few scientists think they're wasting their time and money.

For starters, there's hesitancy about the confluence of drug testing and unregulated products

There are more ways to mess up the common move than you think. This guide will help you progress into a flawless lunge.

Patricia Baker established multiple track-cycling records in her age group after taking a 20-year break from racing

This exercise routine from legend Robert Killian focuses on functional strength and mobility, you can do it almost anywhere, and little to no equipment is required

Or why you don't have to get up at 4 A.M. to perform a two-hour ritual of self-care

There's at least a theoretical basis for believing in the power of CBD topicals

The simple story of an unfair shoe with “springs” doesn’t capture the true complexity of the ongoing debate about technology in footwear

A new study finds unexpected benefits from super-short intervals with even shorter recoveries

Iain Mickle's secret to tackling sub-three-hour marathons late into his fifties? Running buddies.

Scientists are increasingly skeptical of the benefits of flexibility, but the fitness world doesn’t want to hear it

The controversial author and personal trainer shares his lessons from the outer limits of self-experimentation

Follow this yoga routine, in addition to your time on the slope, to improve and maintain your strength and flexibility all season long

Expert advice to help you recover fast, stay injury-free, and have fun in the mountains

When Rebecca Mehra tried to unplug a broken oven, she almost ended her track season—or worse

New research hands down verdicts on what to lift, how much, and how hard

Heat training has been hyped as a powerful workout enhancer, but new research sounds a note of caution

With multiple intensity zones and a unique three-sided design, the new TRX Rocker recovery tool takes foam rolling to the next level

Anyone who disagrees is an "obvious idiot"

Klaus Obermeyer shares some tips on work, exercise, and (of course) skiing

Researchers deploy machine learning to match running styles to the risk of different types of injury

A holistic guide to strong, healthy shoulders

To better push your limits, try swearing off some of your most familiar crutches now and then

Improving your max aerobic power may come at the cost of worse efficiency, a study finds

17 of the year's best pieces from our Do It Better columnist Brad Stulberg

Improve your range of motion, increase efficiency, and boost flexibility and balance with these five mobility moves

To train athletes to truly push their limits, it helps to draw inspiration from the French social theorist Michel Foucault. Seriously.

The military is rethinking physical training and overhauling its classic fitness test. Think you have what it takes?

One of the best boulderers of the 1990s is climbing into her fifties

Make yourself more injury-proof by using these poses to increase your strength and flexibility

The cross-country skiing icon was beginning a new chapter in life when a diagnosis changed everything

Two new books take opposing views on one of the most contentious issues in sports

Great titles for the endurance-curious, or to curl up with yourself

Cross-training is key for improving performance, recovery, and resilience, whether you're running on the road or on the trail

There's no silver bullet, but these useful practices will help you keep training

Whether you're bringing Fido up a volcano or on an impossibly long trail, these tips from runner Alex Borsuk will help you and your pooch stay safe and happy

After a long day on the slopes, these seven moves (which can be done at the après bar) will help you recover and stay injury-free

Platelet-rich plasma therapy, or PRP, has been touted as a miracle cure for sports injuries, but it may counteract the benefits of plain old rehab exercises

These new training apps can craft customized routines based on your past performance. It’s almost like having an automated personal trainer. 

A new analysis tracks people doing 35 hours of exercise per week for a decade, and finds no evidence of heart risks

Outdoor athletes suck at squatting. Here's how to fix your form.

7 kettlebell exercises to up your strength and conditioning

Knee pain plagues athletes of all stripes. Here are some of the best exercises to help mitigate and prevent chronic occurrences of it.

Swenson just summited one of the last unclimbed peaks in the world

Scientists can forecast marathon performance fairly accurately. But for longer distances, things get complicated.

'Standing Man' chronicles cyclist Payson McElveen's attempt to set a new fastest known time on a loop of White Rim in Utah's Canyonlands.