Popsugar Fitness Workouts Plank Challenge: Try It For 2 Weeks Your Arms and Abs Will Transform After This 2-Week Challenge June 8, 2021 by Jenny Sugar View On One Page Photo 5 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Elbow Plank Start face down on the floor resting on your forearms and knees. Push off the floor, raising up off your knees onto your toes and resting mainly on your elbows. Contract your abdominals to keep yourself up and prevent your hips from sticking up. Keep your back flat and your chin tucked to create a neutral spine. Previous Next Start Slideshow WorkoutsStrength TrainingFitness ChallengesPlankPOPSUGAR ChallengesArm ExercisesAb Exercises