21-Day HIIT Challenge

3 weeks to HIIT your body!

There’s no short cut to weight loss, but when it comes to workouts that produce quick, visible results, HIIT is your best bet! HIIT, or high-intensity interval training, is a training style that alternates bursts of intense exercise, with short recovery periods. For this 21-day HIIT challenge, we’re using some of our most popular HIIT workouts to give you three weeks of quick, but effective training.

Our workout plan consists of interval training, walking/jogging, and rest days. It’s easy-to-follow and the quick workouts are ideal for anyone who doesn’t have hours to spend at the gym. It’s the perfect way to tone your muscles, improve your endurance, and burn some serious calories!

What to Do: Download the calendar and complete the workout assigned each day. Some days, you will also have to walk or jog a set number of miles. You can do this outdoors or using the treadmill at your gym. The important thing is to have fun!

The Plan

Day 1 – The Best Fat-Burning Lower Body HIIT Workout
Day 2 – HIIT Arm & Shoulders Workout
Day 3 – 2-Move Fat-Burning HIIT Workout & Walk/Jog 3 miles
Day 4 – HIIT Your Butt Workout
Day 5 – Rest Day
Day 6 – HIIT Total Body Toning Workout
Day 7 – HIIT Arms & Shoulders Workout

Day 8 – 10-Minute Total Body HIIT Workout & Walk/Jog 3 miles
Day 9 – The Best Fat-Burning Lower Body HIIT Workout
Day 10 – Rest Day
Day 11 – HIIT Total Body Toning Workout
Day 12 – HIIT Your Butt Workout
Day 13 – 2-Move Fat-Burning HIIT Workout & Walk/Jog 3 miles
Day 14 – HIIT Arms & Shoulders Workout

Day 15 – Rest Day
Day 16 – The Best Fat-Burning Lower Body Workout
Day 17 – HIIT Arms & Shoulders Workout
Day 18 – 10-Minute Total Body HIIT Workout & Walk/Jog 4 miles
Day 19 – HIIT Butt Workout
Day 20 – Rest Day
Day 21 – 2-Move Fat-Burning HIIT Workout & 10-Minute Total Body HIIT Workout

Download the FREE 21-Day HIIT Challenge Calendar HERE.