Popsugar Health & Fitness Workouts What Are the Best Ab Moves? The 50 Best Moves to Strengthen and Chisel Your Core (Plus a Bonus 10-Minute Workout Video!) 14 September 2018 by Jenny Sugar View On One Page Photo 23 of 51 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 23 Side-Plank Crunch Begin in a side elbow plank with your left elbow down and your right hand behind your head. Keeping your torso stable and your waist lifted, bring your right leg up toward your shoulder to lightly tap your right elbow. Lengthen your right leg back to the starting position to complete one rep. Previous Next Start Slideshow WorkoutsAb Exercises