Popsugar Fitness Workouts Kelsey Wells's Three-Week Plank Challenge Strengthen Your Abs With This Three-Week Plank Challenge From Kelsey Wells July 2, 2020 by Tamara Pridgett View On One Page Photo 8 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Previous Next Start Slideshow WorkoutsStrength TrainingAb WorkoutsKelsey WellsTrainer TipsGIF Exercises