HIIT It Hard For 7 Days With These Sweat-Tastic Workouts

If HIIT had a best friend, it would be Tabata. Tabata is a workout protocol requiring 20 seconds of intense work followed by 10 seconds of rest for eight rounds. Sound simple enough? The concept may be easy to understand, but working at maximum output for 20 seconds should get you gasping and dragging booty by the end! If you string multiple Tabatas together like in one of these workouts, you'll be well on your way to HIIT success.