Popsugar Health & Fitness 15-Minute Workouts Bodyweight Arm Workout Be Warned! Your Arms Will Be So Sore After This 15-Minute Bodyweight Workout 29 December 2019 by Jenny Sugar View On One Page Photo 9 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 Elbow Plank With Side Step Start in an elbow plank and alternate stepping your legs to the side, keeping your toes off the floor. To modify, tap your toes to the floor. Complete 10 reps with each leg for a total of 20 reps. Previous Next Start Slideshow 15-Minute WorkoutsBodyweight ExercisesArm WorkoutsBeginner WorkoutsArm ExercisesStrength TrainingWorkouts