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This 25-Minute Cardio Workout Video Proves Strength Training Doesn't Have to Be Slow
25 minutes. No excuses. Go!
What's the Difference Between Circuit Training and Interval Training?
Nope. It's time to clear up all the confusion.
Shay Mitchell's Circuit Workout Proves She's a Total Badass In the Gym
Try her intense strength and cardio circuit—and see if you survive.
7 Abs Exercises You Can Do Every Day for a Stronger Core
These 7 moves offer just enough burn to build serious muscle without leaving your energy depleted.
The Total-Body Stairs Workout You Can Do Anywhere
Take advantage of your porch steps for a challenging outdoor workout.
This Boxing-Style HIIT Workout Is Designed for People with Knee Pain
HIIT workouts don't have to be all about the jumping or squatting or...squat jumping.
The Challenging Arm Workout for Women You Can Do Right at Home
Bonus: You can do it right at home.
Sports Illustrated Cover Model Kate Upton Has Some Seriously Impressive Fitness Skills
Her workouts are no joke.
I Committed to 30 Days of Circuit Training and Finally Enjoy Exercise
What used to feel like pure torture is now the only way to make it through my day.
This 30-Day Outdoor Circuit Training Challenge Will Amp Up Your Adventure Game
Up your outdoor game in 30 days
The 30-Minute, No-Equipment Workout That Burns 250 Calories
Get sweaty the quick and dirty way with a workout from S10 Training
This 90s-Inspired Circuit Workout Is Perfect for a Throwback Gym Selfie
Aka pretend you're on 'Legends of the Hidden Temple'
Work Out Like An Australian with This Total-Body Toning Circuit
Fast and fun: that's the workout mantra from Down Under.
The 4-Minute Circuit Workout You Can Do Anywhere
We dare you to tell us you don't have time for this total-body routine.
The Complex-Moves Circuit You Should Add to Your Workout Routine—and Why
The results you want in half the time.
Circuit Training Goes Old School for a Total-Body Burn
Put a fresh spin on old school bodyweight moves.
Instagram Star Kayla Itsines Shares Her 7-Minute Workout
Get ready to #sweatwithkayla: The creator of the Bikini Body Guide designed an exclusive 7-minute circuit workout for us.
Speed-Building Hills Sprints That Sculpt All Over
Runners, tackle tough hills—minus the huffing and puffing—with this surefire circuit.
Buh-Bye Boring Beach Workouts! Build Serious Strength on the Sand
Take your routine to shore to torch two times the calories and sculpt every inch of your beach bod.
10-Minute Tighten-and-Tone Circuit from Shaun T
The Insanity founder is back at it with this quick but effective workout routine that targets all your trouble zones.
The USWNT Endurance Circuit Workout
Train like a U.S. Women's National Team member with this endurance workout straight from the coach.
Nike+ NYC Exclusive Two-Week Training Plan to Become a Better Athlete
Are you a runner who shuns strength training? A gym rat who hates cardio? Follow this exclusive two-week training plan to become stronger, faster, and fitter.
Rev up your metabolism and burn more calories around the clock with this muscle-making circuit.
3 Strength Exercises from Snowboarder Elena Hight
The 2-time Olympic snowboarder shares 3 exercises that keep her body strong and injury-free.
60 Seconds to a Slimmer Body
60 seconds seems like nothing, but these fast circuits will prove that's all you need to tighten and tone your body.