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 5 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Side Plank Leg Lift Come into a side elbow plank on the right side with your flexed feet stacked. Rest your top hand on your upper hip or extend it into the air. Keeping your spine lengthened and your abs engaged, lift your left leg up just higher than your top hip. Then slowly lower it back to your bottom leg to complete the rep. Previous Next Start Slideshow PlankArm ExercisesWorkoutsAb Exercises