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HIIT

High-Intensity Interval Training

The 10-Minute Cardio HIIT Workout Without Weights for All Fitness Levels

Burn fat and torch mega calories with this HIIT cardio workout routine.

The Only 8 Power Moves You Need for a Good HIIT Workout

One pro tested 1,700 routines to find the most effective mix

The Tabata Treadmill Interval Workout That'll Make You Strong and Speedy

No treadmill? Not an excuse. Hop on a spin bike or sprint outside instead

The #1 Workout That Keeps You Young, According to Research

Basically the closest thing you're gonna get to a magic potion

This Genius Tabata Toilet Paper Workout Will Make You LOL

It might seem like bathroom humor, but this toilet paper Tabata workout is no joke.

The No-Crunch Abs Workout for a Tabata-Style Burn

Four minutes dedicated to carving your six-pack.

The Dynamic Tabata Workout That Improves Your Balance

Improve your balance, one crazy-tough move at a time.

The 20-Minute HIIT Yoga Flow to Sweat Away Stress

We promise you'll feeling stronger afterward.

Hard Exercise Is Actually More Fun, According to Science

So that's why everybody loves CrossFit so much.

4-Minute Tabata Workout to Boost Your Power and Agility

Get athlete-level skills in under 5 minutes.

The Ultimate 4-Minute Workout to Sculpt a Stronger Core

Burn crazy cals and fire up those obliques in 4 minutes flat.

The Cardio-Strength Interval Workout You Need for an All-Over Burn

Spintervals are the secret to your hardest workout ever