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 2 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Plank Jacks Begin in plank position with your feet together. Keep your upper body stable and engage your abs. Begin doing jumping jacks with your legs. Hop them wide, then hop them together. This counts as one rep. Previous Next Start Slideshow WorkoutsPlankArm ExercisesAb Exercises