Popsugar Fitness Cardio Workouts At-Home Exercise | 20-Minute HIIT Cardio Workout When I Can't Go For a Run, This is the 20-Minute Cardio HIIT Workout I Do at Home 21 June, 2020 by Jenny Sugar View On One Page Photo 3 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Air Squat Stand with your feet slightly wider than your shoulders, feet parallel or toes slightly turned out. Bend your knees, lowering your hips deeply. Bring your thighs parallel to the floor and bend the elbows, keeping weight back in your heels. Rise back up, straightening the legs completely, squeezing the glutes at the top of the movement to get the most out of the exercise. This counts as one rep. Do as many squats as you can in 40 seconds. Rest for 20. Previous Next Start Slideshow Cardio Workouts20-Minute WorkoutsIntermediate WorkoutsWorkouts