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7 Pregnancy Modifications for Popular Group Fitness Classes
Popular in Training
Foods to Fuel Your Marathon
The fuel your body needs to cross the finish line faster and injury-free. Good luck!
What Training for a Bikini Competition Is Really Like
A four-time winner shares her diet and fitness plan--and damn is it strict!
Forget Diet and Exercise--Do You Have the Fit Gene?
The next big thing in sweat tech isn't a wrist gadget. It's in your body.
Do This HIIT Workout for Seriously Sculpted Arms
Target your triceps and biceps for enviable arms in no time.
Train for Your First Triathlon in 12 Weeks
If you can swim, bike, and run, cross this popular bucket-list item off your "one day I'll..." roster this summer with this plan.
Can't Commute? Blast 500 Calories Indoors Fast
Indoor cycling. Burn more calories.
Half Marathon Training Schedule for First-Timers
This step-by-step training plan will help you get across the finish line, happily!
True Life: I'm a Female Bodybuilder
From exercise to nutrition, what it takes to build a champion physique.
The Beginner Runner's 5K Training Plan
If running even one mile sounds intimidating, follow this simple plan to get ready to rock your first 5K!
12-Week Olympic Triathlon Training Plan
Everything you need to swim, ride, and stride to the finish line of your first triathlon is right here!
Walk More Than a Marathon in 30 Days
Get in shape by walking!
Train for a Half-Marathon in 6 Weeks
Follow this effective training plan and prepare to crush your PR at the finish line at your next race.
What's an E-Stim Workout and Why Should You Avoid It?
This is one workout fad we don't suggest you try.
Are Sore Muscles a Sign of a Good Workout?
Celebrity trainer Harley Pasternak reveals the truth about delayed onset muscle soreness (DOMS) and shares his top tips to reduce pain fast.
The 20 Intense Stages of Running a Ragnar Relay
200 miles, 12 people, two vans, 34 hours, and a whole lot of thoughts.
All the Ways Running Outside Beats the Treadmill
From stronger glutes to a happier heart.
This 20-Minute Cardio Workout Needs No Equipment
Do it anywhere, break a sweat, and get stronger on the fly.
Run Faster, Longer, Stronger, and Injury-Free
This infographic of the best running form cues will help you move more fluidly and efficiently whether you're a casual runner or marathon addict.
4 Weeks to a Faster 10K
Increase your running strength, power, and speed with this plan to help you set a new PR in your next 13.1-mile race.
8 Running Apps We Love
Signing up for a race? Download one (or more) of these apps to make training a breeze!
How to Run a Faster 5K
Shave time off your personal record guaranteed!
This Is How Fast the Average Person Runs
The truth is going to shock you.
10 Things to Know Before Your First 5K
In this running for beginners story, we tell you the 10 thing to know before your first 5K.