Popsugar Health & Fitness Workouts The Best Ab Workouts The 20 Greatest Ab Workouts That Will Tone, Sculpt, and Strengthen Your Abs 6 June 2018 by Tamara Pridgett View On One Page Photo 17 of 18 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 17 Carve Your Core With This Plank Challenege Get your strongest, sexiest core with this 20-minute plank challenge. Previous Next Start Slideshow Bodyweight WorkoutsCore ExercisesAb WorkoutsStrength TrainingWorkoutsAb Exercises