Popsugar Fitness Workouts No-Equipment Butt Workout Better-Butt Challenge: A Lazy-Girl Workout You'll Love November 1, 2017 by Susi May View On One Page Photo 5 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Elbow Plank With Side Step Start in an elbow plank. Extend your left leg out to the side, gently tapping your toes on the ground. Bring your foot back into a plank. Repeat the same movement with your right leg to complete one rep. Previous Next Start Slideshow WorkoutsStrength TrainingButt WorkoutsBeginner Workouts15-Minute Workouts20-Minute Workouts