Popsugar Health & Fitness Hiit Workouts Short HIIT Workouts For a Flat Belly and Abs Work Up a Quick Sweat With These 10-Minute HIIT Workouts That Focus on Burning Belly Fat 10 March 2018 by Florie Mwanza View On One Page Photo 4 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 10-Minute Flat Belly Workout to Tighten and Tone Get out of bed and grab two flannels for a toning workout you'll be feeling all day long. Previous Next Start Slideshow HIIT WorkoutsHIITWorkouts