Popsugar Fitness Workouts Fast Full-Body Workout A Fast, Full-Body Workout, No Equipment Needed September 5, 2014 by Leta Shy View On One Page Photo 2 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Superman The Superman is a simple, no-equipment-needed exercise that helps keep your back strong and butt toned. Here's how to do it: Start by lying down on the mat, belly down. Extend your arms above your head. Lift your upper back and legs, and hold for five seconds, squeezing your glutes. Lower back down. Repeat for 10 reps; then stretch your back out in Child's Pose between sets. Source: Megan Wolfe Photography Previous Next Start Slideshow WorkoutsHarley Pasternak30-Minute Workouts