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 30 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 30 Forearm Plank Hip Dips From an elbow plank, slowly rotate the spine to lower your left hip to just above the floor (about one to two inches from the ground). Come back to elbow plank. Now lower the right hip toward the floor. This counts as one rep. Previous Next Start Slideshow WorkoutsPlankArm ExercisesAb Exercises