Popsugar Fitness Plank Best Plank Exercises 26 Best Plank Exercises For Strong Arms and Abs 2 July, 2018 by Jenny Sugar View On One Page Photo 16 of 26 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 16 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 PlankArm ExercisesAb Exercises