Popsugar Fitness Workouts Printable Workouts 9 Printable At-Home Workouts to Help You Survive the Holiday Madness December 16, 2018 by Susi May View On One Page Photo 6 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Take the Plank Challenge Challenge your core with this quick and fun workout challenge. Learn more about each plank variation here. Click here for a printable PDF of this plank challenge. Previous Next Start Slideshow WorkoutsPrintable Workouts