21-Day Double Workout Challenge

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Two is always better than one; and workouts are no different. Regardless if you’re training for something specific or looking to transform your body at a faster rate, two-a-days are an amazing way to get the results you want. We created this 21-Day Double Workout Challenge to push your body to the limit while testing your resolve and dedication to creating the total body change you crave.

There are over 650 muscles in the body. Even if you did this double workout every day, you wouldn’t burn out every single one. This challenge offers a mix of HIIT exercises that are designed to be lax on time but not the work. Fast-paced movements with minimal rest allow you to burn more calories. You’ll also burn fat by developing leaner, stronger, more toned muscle. Catch your breath and get ready for the challenge you’ve been waiting for.

21-Day Double Workout Challenge

What to Do: Complete the challenge below by following each day’s workout plan. You can complete one workout in the morning and the other later in the day or double up mid-day; it’s up to you. Make sure you keep hydrated between workouts, especially if you decide to complete them back to back.

What You’ll Need: A yoga mat, an interval timer (available on most phones), a chair or step, a range of dumbbell weights, and a range of kettlebell weights

Week 1

21-Day Double Workout Challenge

Use our 21-Day Fat Loss Program with this challenge to stay ready, refueled, and recovery ready.

Day 1: 10-Minute Tabata Workout for Arms & Abs and 7-Minute Total Body Workout Challenge
Day 2: 8 Yoga Poses for a Strong Core and 14-Minute Advanced Workout
Rest Day 3
Day 4: 10-Minute Tabata Workout for Abs and HIIT Your Butt Workout
Rest Day 5
Day 6: INFERNO – 4 Minute Fat Burn and 20-Minute Total Body Tabata Workout
Day 7: 15-Minute Arm Sculpting Workout and 4-Minute Beach-Ready Booty Blast

Week 2

Double Workout Challenge

For week two, reconsider how important hydration is. Keep your organs and muscles healthy with any of these 17 Summer Fruits and Vegetables for Hydration.

Day 8: High-Intensity Total Body HIIT and How To Get a Better Butt in 15 Minutes
Rest Day 9
Day 10: 5-Minute Core Plank Challenge and 20-Minute Booty Blast Circuit
Day 11: 7-Minute Fat-Burning Workout Challenge and 15-Minute Indoor Bodyweight HIIT
Rest Day 12
Day 13: 7-Minute Waist Trimming Workout Challenge and 30-Minute Booty Blast & Thigh Workout
Day 14: High-Intensity HIIT for Abs and 7-Minute Arm Workout Challenge

Week 3

3-week Double Workout Challenge

Day 15: 10-Minute Best Butt Workout Challenge and 7 Minutes to Whittle Your Middle
Day 16: The Ultimate Abs Workout and Tabata Tricep Workout
Rest Day 17
Day 18: 5-Minute Butt Firming Workout and 15-Minute Total Body Fat Blaster
Day 19: Early-Bird Boot Camp Workout and 20-Minute Oblique Workout for A Slimmer Waist
Rest Day 20
Day 21: 8 Exercises to Blast Muffin Top Fat and 30-Minute Booty Blast & Thigh Workout

Your 21-day double workout challenge is over. Now it’s time to focus on one muscle you’d love to show off. Get a round and firm butt with our 30-Day Body Squat Challenge.

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