Popsugar Fitness Workouts Bodyweight Workout | Printable This 6-Move Workout Will Tone and Tighten Your Arms, Abs, and Butt June 19, 2018 by Susi May View On One Page Photo 7 of 7 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Reverse Crunch Reps: 15 Lie on your back on the floor. Place your hands on the floor beside you. Bring the knees in toward the chest with your feet together. Use your abs to slowly curl your hips off the floor and into your chest, and then slowly lower them back to the starting position to complete one. Don't swing your legs to create momentum; use your abs to control your movement. Do 15 reps. Previous Next Start Slideshow WorkoutsStrength TrainingBodyweight WorkoutsFull-Body WorkoutsPrintable Workouts15-Minute Workouts