Popsugar Health & Fitness Gif Workouts At-Home Cardio HIIT Workout Full-Body Fitness Quickie: 20-Minute Cardio HIIT Workout 18 June 2018 by Susi May View On One Page Photo 6 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Circuit One: Jumping Lunges Stand with your feet together and your knees soft. Jump and come into a lunge with your left leg forward. Push off with both feet, jumping them together, then hopping into a lunge with your right leg in front. Continue alternating sides for 40 seconds, then rest for 20. Do two rounds of this circuit, and rest for one minute before starting the second circuit. Previous Next Start Slideshow GIF Workouts20-Minute WorkoutsBodyweight WorkoutsIntermediate WorkoutsHIITFull-Body WorkoutsCardio WorkoutsStrength TrainingWorkoutsGif