Metabolic-Boosting HIIT Workout

Sprint Cross-Country Seal Power Knee Mountain Climber X-Jack The Mummy Reach Burpee Squat High Knee Jump Lunge

18 Minute Butt Buster HIIT Workout

Do each set three times. Rest for 30 seconds after each set. Squat Rotated Donkey Kick Lateral Sweep Reverse Lunge Rotated Donkey Kick Lateral Sweep Star Squat Pedal Grasshopper

8 Moves Only HIIT Workout

Rest for one minute after each round. Sprint Mountain Climber Cross Jack Crab Touch Side Suicides Tiger Push Up Skater Jump Russian Twist

HIIT Workout: 2 Sprint Moves Only

When sprinting, relax your hands and shoulders, keep your torso tall, and engage your core. Drive with your arms to create momentum but keep the arms bent at roughly 90 degrees and swing your hands from shoulders to hip. Sprint Mountain Climber

Star Power HIIT Workout – Only 4 Moves

Yelling, “I’m a star!” as loudly as possible is optional during this routine, but highly recommended! That brief moment of levity may make you forget how much your legs and legs are burning during this blockbuster workout. X-Jack Jump Lunge Star Cross Push

14 Minute Fire HIIT Workout

For all levels, repeat the set four times. Rest for one minute after each set. Sprint Plank Jumping Jack Plank Rotation Squat Burpee Push-Up Seal Jack Plank Punch Squat Jump Alternating Leg Lift Burpee 1-2 Push Star In-and-Out Abs Squat Pedal