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 7 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Spiderman Plank (aka Creepy Crawler) In plank, bring your knee to your elbow and then alternate sides. This counts as one rep. If this is too challenging, just lift your leg open to the side. Previous Next Start Slideshow WorkoutsPlankArm ExercisesAb Exercises