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 12 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 12 Elbow Plank With Side Step Start in an elbow plank and alternate stepping your legs to the side, keeping your toes off the floor. To modify, tap your toes to the floor. Previous Next Start Slideshow WorkoutsPlankArm ExercisesAb Exercises