Popsugar Health & Fitness Plank What Are the Best Side Plank Variations? If You Want to Slim Your Waist, These Are the 13 Best Side Plank Variations 14 March 2018 by Jenny Sugar View On One Page Photo 6 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Side Elbow Plank With Pulse Start in a side elbow plank on your right side. Lower your hips slightly and then lift your pelvis up, feeling the right side of your body engage, especially your abs. This completes one rep. Previous Next Start Slideshow PlankArm ExercisesWorkoutsAb Exercises