Popsugar Health & Fitness Workouts Best Crunch Variations Add These 20 Crunch Variations to Your Routine and Chiseled Abs Are on Their Way! 5 August 2018 by Jenny Sugar View On One Page Photo 20 of 20 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 20 Upper-Ab Crunch Lie on your back with your feet together and knees opened in a butterfly position. Place the ball at the bottom of your shoulder blades and then place your hands behind your head. Exhale, pulling your abs to your spine, and contract your upper abs as you perform a crunch. Continue this motion with small, concentrated pulses. Previous Next Start Slideshow WorkoutsAb Exercises