High-Intensity Interval Training (HIIT)

Workout Routines

Push to the Next Level with This High-intensity, Lower-Body Workout

Erik Bartell’s half-hour HIIT routine is all about helping you break plateaus.

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Workout Routines

This Dumbbell-only Workout Will HIIT Your Entire Body in Six Moves

Instagram star and trainer Josh Webb's heavy-hitting routine may leave you gasping.

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Workout Routines

Military Monday: Hit Your Legs, Lungs, and Core in Under an Hour

Infantryman and trainer Chris Kellum introduces his Hybrid Warrior training plan.

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Workout Routines

Become a HIIT Machine with This Half-Hour Upper-Body Workout

Got 30 minutes? Give Erik Bartell's latest lung crusher your all.

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Workout Routines

This Half-hour Floor Workout will Both Build and Burn

Trainer Erik Bartell has a challenging half-hour in store for you.

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Workout Routines

Sprint Your Way to Blasting Fat and Building Athletic Power

Burn calories, build muscle, and get faster with these three HIIT workouts.

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Workout Routines

Build Strength and Improve Conditioning With This 20-Minute Workout

All you need are a pair or dumbbells and a jump rope to get your sweat on.

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Workout Routines

Military Monday: You Gotta Tabata with This Chest and Abs Workout

This fast-paced HIIT workout will get you ready for the beach or pool.

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Workout Routines

This High-Intensity Workout Will Blast Your Upper Body and Core

Push yourself and you'll soon see steady gains with this dual-purpose workout.

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Workout Routines

This HIIT Hybrid Workout will Blast Your Upper Body

The goal of this workout from trainer Erik Bartell is to get better every time you train.

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