Popsugar Health & Fitness Plank Plank Exercises For Abs These Are the 35 Most Effective Plank Exercises For Carving Your 6-Pack 15 August 2018 by Jenny Sugar View On One Page Photo 9 of 36 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 Plank to Pike Begin in plank position with two towels under the balls of your feet. Slowly bend both knees in toward the chest while keeping the arms straight, shoulders over the wrists, and maintain a flat, tabletop back. After doing 10 reps, draw both knees to the right foot for five reps and then to the left foot for five. Previous Next Start Slideshow PlankArm ExercisesWorkoutsAb Exercises