Popsugar Fitness Workouts Bodyweight Core Exercises 12 Easy-to-Follow Moves That Chisel Your Core August 6, 2015 by Lizzie Fuhr View On One Page Photo 3 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Reverse Crunch 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 the hips off the floor and into your chest, and then slowly lower them back to the starting position to complete one. Repeat for one minute. Don't swing your legs to create momentum; use your abs to control your movement. Previous Next Start Slideshow WorkoutsStrength TrainingAb Exercises