Popsugar Fitness Workouts Plank Exercises For Abs For a Leaner Belly, These 35 Plank Variations Are a Must (Plus 1 Bonus Video!) August 15, 2018 by Jenny Sugar View On One Page Photo 35 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 35 From Beginner to Advanced: 15 Side-Plank Variations For a Flat Belly Press play to learn a bunch of ways to play with your plank and work your abs. Previous Next Start Slideshow WorkoutsPlankArm ExercisesAb Exercises