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This Total-Body HIIT Workout Will Get You Sweating In Under 5 Minutes

It will be the longest, but most #worthit 5 minutes of your life

Work Out Like An Australian with This Total-Body Toning Circuit

Fast and fun: that's the workout mantra from Down Under.

Maximize the Rest Periods of Interval Training to Get Fit Faster

Your downtime is no time to stop moving, says one trainer.

Exclusive Barry’s Bootcamp Full-Body Workout

Barry of Barry’s Bootcamp crafted a total-body conditioning plus cardio workout exclusively for us! See it here.

The HIIT Workout the Indianapolis Colts Cheerleaders Swear By

Their trainer shares the squad's favorite high intensity interval training moves to stay strong, sculpted, and energized.

Barry's Bootcamp-Inspired Abs, Butt, and Core Workout

Sculpt, tone, and burn fat with this 30-minute treadmill and strength training interval routine.

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.

10 New Fat-Blasting Tabata Workouts

Take your tabata off the treadmill and torch mega calories in 4 minutes with these moves.

HIIT Playlist: 10 Songs That Make Interval Training Easy

Power through your HIIT workout with these slow and speedy tracks for a quick, but intense sweat sesh.

Lower-Body HIIT Workout

Tone your butt and thighs while blasting fat with this fast-paced plyometrics routine.

10-Minute HIIT Sprint Workout

Want to burn major calories? These intervals of bodyweight exercises and all-out running mean fat doesn’t stand chance!

The No-Fail Fat-Loss Plan

Shed even the peskiest pounds in 6 weeks with this program that combines the most effective cardio and strength workouts.

EPOC: The Secret to Faster Fat Loss?

Discover the gimmick-free way to keep your body in calorie-burning mode all day long.

Train for a Half-Marathon in 8 Weeks

Follow this two-month plan to run your next half faster than ever before.

Yes, You Can 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.

The Insanely Effective 15-Minute Workout

Make every second count with this action-packed plan that rolls cardio and strength training into one.

The Research-Approved 20-Minute Tabata Workout

New research says this high-intensity interval training protocol torches even more fat than experts thought. Try this routine!

8 Benefits of High-Intensity Interval Training (HIIT)

Science-backed reasons why high-intensity interval training should be part of your regular routine.

Turn Your Bike Ride into a Fat-Burning Workout

Hop on your 2-wheeler for a calorie-torching session that'll fly by as you enjoy the outdoors.

4 Fat-Burning Plans to Beat Treadmill Boredom

These 4 killer cardio plans torch more calories and kick boredom to the curb.

Fitness Secrets from a Figure Competitor

Learn how to achieve a toned look that’s not one bit masculine or bulky from a bikini competitor.

Total-Body Workout: 20-Minute Metabolism Booster

Turn your body into a fat-burning furnace with this metabolic conditioning routine.

10 Ways to Burn More Calories on a Treadmill

Turn your dreadmill to shredmill with these expert tips for better, faster results.

HIIT for the Holidays

Try this no-gym, 15-minute fat-blaster to stay slim and sane this season.

7 Reasons to Try Interval Training Now

Find out how this time-saving technique can up your results in the gym