Popsugar Health & Fitness Charlee Atkins Plan Bodyweight Upper Body and Core Workout From Charlee Atkins Want Stronger Arms and a Toned Core? This 20-Minute Circuit Can Help Get You There 24 February 2021 by Colleen Travers View On One Page Photo 4 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Eccentric Push-Ups Start in a plank position with your arms and legs straight, shoulders above your wrists, core engaged. As you inhale, slowly bend your elbows, keeping them close to your sides as you lower your body toward the floor. When your shoulders are in line with your elbows, drop to your knees. As you exhale, press your palms into the floor and straighten your elbows, keeping your core tight. Get back into a plank position, with your knees off the floor, and continue this movement for 40 seconds. Previous Next Start Slideshow Charlee Atkins PlanTrainer Tips20-Minute WorkoutsArm WorkoutsBodyweight WorkoutsAb WorkoutsStrength TrainingWorkouts