Try this challenging and mentally-engaging multi-pace workout to introduce speed in a time-based, road-friendly format.

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

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

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

7 kettlebell exercises to up your strength and conditioning

Fight Turkey Day couch lock with these secret weapons

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

Say goodbye to your fitness tracker. Now your workout gear can deliver your stats.

A few athlete chefs share their favorite recipes for eating healthy—and hearty—when the cold settles in

Put in the work now to have a successful winter

Train naked. Or wear a panda suit if you want—it’s your house!

Don’t ignore speed during marathon training if, like Dathan Ritzenhein, late-race hamstring cramps are your nemesis.

A thorough cooldown stretching routine is essential for injury prevention and helps speed up recovery after any workout

A handful of new products are claiming they can. The jury's still out on whether they deliver enough of an edge to justify the agony.

This basic, effective workout will build functional strength in key arm muscles

Ten moves to improve strength, running economy, and resilience for the road or trail

The physiological and psychological responses to different types of interval workout depend on the details

The rest you take between repeats is as significant as the fast portions of an interval workout. Modifying the length and speed of your recoveries provides infinite training options.

Pack these essentials to keep up your workout routine—no matter where you go

Warm-up exercises are essential for priming your body prior to any workout, especially running

Get more from your gym time by lifting for strength and advancing to harder and more advanced exercises—plus enjoy the work more as you see your strength grow.

She's one of the most successful cyclists in U.S. history. And she's done it her way.

A study that assigns different workout plans to each leg shows just how much (or little) the details matter

Scientists debate the physiological benefits of ramping up your training intensity or your training volume

This summer, get your kids off the couch and get swole

You have to work hard to build strength, but that doesn’t necessarily mean collapsing to the floor after each set

In this episode of Moves, instructor Doug Lawder of Santa Fe–based Railyard Fitness walks us through six moves for a stronger back

The theory makes sense, but actually showing that “hyperoxic training” makes you faster remains a challenge

Really, I just needed an excuse to take a dip

In this episode of Moves, Santa Fe–based Railyard Fitness instructor Doug Lawder walks us through moves for stronger legs

The cliff diver competes against athletes half his age

Analyzing your training distribution can reveal the right balance between hard and easy workouts

A newly published scientific case report documents the rise (and fall) of cycling phenom Oskar Svendsen

The 44-year-old Ironman competitor wakes up early—and we mean early—and only takes one rest day a month

Alyx Walkinshaw walks us through how to do a perfect squat

The fitness media company has been gearing up for a public offering since last year

A new startup called Vast Terrain taps U.S. suppliers to make top-shelf goods

Rowing is a great workout but can be somewhat boring. The RW900 fixes that.

As you get older, setting goals—and reaching them—will look a little different

Connective tissue is notoriously slow to heal. New research suggests gelatin might help.

Maximize your long runs by adding progressive surges, a training secret from the legendary coach of Bill Rodgers and the Greater Boston Track Club.

Nine poses that will help mitigate and prevent persistent lower-back pain

Six of our favorite men's hooded sweatshirts

Precision data-gathering devices to optimize your workouts

New tweaks mean they're easier to use at work and on the trail

With a goal of forming connections through audio-based workouts on your phone, Aaptiv might be the end of personal trainers

Running coach David Roche shares his training tips

More companies are selling makeup specifically for sweating in. But do women really need it?

The former Soviet special-forces instructor who introduced kettlebells to the U.S. talks strength training with Tim Ferriss

If there’s one thing that makes Americans uncomfortable, it’s successful women

A five-minute total-body workout you can do anywhere

Even bagels, pasta, and sweets deserve a place in your personal food pyramid

The Harmony mat from Jade Yoga provides the perfect nonslip grip for sweaty vinyasa sessions

Why the top American in Monday’s Boston Marathon is all about training transparency

Before his controversy-plagued doubled ascent in 2017, the Spanish ultra star deployed the latest altitude science to speed his high-altitude adaptation

Stabilize and strengthen your core in five minutes

To run your fastest 5K you need to develop your endurance, muscles and race-specific speed. We'll show you how.

Six keys to minimizing impact and maximizing speed on the downhills.

In 'Beautifully Savage,' boxing-gym owner Joe Buckner recalls his troubling history and how that's shaped him into the man he is today

Eight of the best ways to maximize the benefits of your foam roller

Adding the stress of a depleted morning run after an afternoon interval workout can boost aerobic capacity.

Researchers dig into the nitty-gritty of interval training, with insights of what, why, and how you should train for different goals

Minnesota coach Dennis Barker gets creative on a crescendoing hill with a curve, marked 100m segments, and snow-melting southern exposure.

Resistance-band exercises add some stretch to your strength-training routine and can be done anywhere

Fitness studios are incorporating rowing into every kind of workout imaginable. But can it actually be fun?

Trust your body, your mind and your training over the data from specific workouts.

An alternative to traditional tempo runs, over/under intervals provide a fun, effective workout on the roads or treadmill.

This bodyweight workout will help prevent muscle imbalances, protect you from injury, and increase your speed and stamina

Use the following three workouts as inspiration to burn a little rubber this winter and improve your speed, stamina and strength.

Looking to boost your athletic performance? Start with your music.