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 17 of 51 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 17 Elbow Plank Start face down on the floor resting on your forearms and knees. Push off the floor, raising up off your knees onto your toes and resting mainly on your elbows. Contract your abdominals to keep yourself up and prevent your booty from sticking up. Keep your back flat — don't let it droop or you'll be defeating the purpose. Picture your body as a long straight board, or plank. Hold as long as you can. Aim for 20-30 seconds in the beginning and work your way up to one minute, as you get stronger. Previous Next Start Slideshow WorkoutsAb Exercises