Popsugar Fitness Workouts 15-Minute Workout Videos Get In a Quick Body Burn With These 15-Minute Workout Videos May 4, 2017 by Jenny Sugar View On One Page Photo 5 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 This Core Challenge Will Change Your Body All Over This quick core challenge works your abs from all angles and targets the back and glutes, too. Equipment needed: none Previous Next Start Slideshow WorkoutsCardio WorkoutsIntermediate Workouts15-Minute Workouts