Popsugar Health & Fitness Hiit Workouts 20-Minute HIIT Workout For Small Spaces You Can Do This 20-Minute HIIT Workout Anywhere and Burn Major Calories 11 November 2019 by Emilia Benton View On One Page Photo 5 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Leg Raises Lie on your back with your legs stretched out in front of you and your hands underneath your seat to protect your lower back. Raise your legs towards the ceiling so they form a 90-degree angle with your upper body. Lower your legs back down until they hover about an inch off the floor. Raise them back up to repeat. Previous Next Start Slideshow HIIT Workouts20-Minute WorkoutsHIITWorkouts