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High-Intensity Interval Training

The F45 Training HIIT Workout You Can Do In Any Gym

Prepare to sweat your *peach emoji* off

Try This Low-Impact HIIT Workout Routine at Home

6 low impact but powerful moves to reap all the fat-burning, muscle-toning benefits of HIIT without stressing your joints.

The Fastest Way to Lose 10 Pounds

If you have a big event or beach vacation coming up, here's how to slim down last-second.

Why You Should Be Watching Out for Injuries During Your HIIT Class

"Many athletes, especially amateurs, do not have the flexibility, mobility, core strength, and muscles to perform these exercises."

This Dumbbell HIIT Workout Will Burn Out Your Arms and Abs

All you need is a set of dumbbells and these expertly designed compound exercises to get a big sweat in.

Is HIIPA the New HIIT Workout?

So, you're saying that my trip to Target counts?

Strength HIIT Workout Videos That'll Push You to the Limit

It's like having a Barry's Bootcamp instructor IRL.

Do You Have to Do HIIT to Be Fit?

Expert trainers' answer might surprise you.

How to Do a Hot Sauce Burpee, the Hardest Burpee Variation You'll Ever Attempt

Ever heard of the hot sauce burpee? You'll never look at the spicy stuff the same way again.

Here's What You Should Be Eating After a HIIT Workout

Learn how to refuel after a killer sweat.

This Bodyweight Tabata Workout from Shaun T Is the Ultimate HIIT Routine

Get right to the point with these heart rate-boosting exercises.

The One Trick for Getting More Out of Your HIIT Workout

These mental tricks from Jen Widerstrom will transform your workouts.

This 20-Minute HIIT Tempo Workout Plays with Speed In an Insane New Way

Alternating between painfully slow reps and explosive bursts is the workout upgrade you didn't know you needed.