Popsugar Fitness Workouts Best Fat-Burning Workouts 15 Workouts That Will Help You Burn Fat and Build Muscle — It's Time to Work February 5, 2019 by Tamara Pridgett View On One Page Photo 7 of 16 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 A 20-Minute CrossFit Workout This CrossFit workout only takes 20 minutes to do, and you're really going to feel it in your legs afterward. Previous Next Start Slideshow WorkoutsStrength TrainingBody FatFat Burning