Popsugar Fitness Workouts Legs and Ab Workout Strong, Shapely Legs and a Sculpted Core Will Be Yours With This Bodyweight Workout May 4, 2018 by Dominique Michelle Astorino View On One Page Photo 20 of 21 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 20 Part 3: Around the World Begin in a side plank position with your top arm extended toward the ceiling. Bring your top arm down and around an imaginary beach ball. Return to side plank with your arm extended up toward the ceiling. Continue this for 45 seconds on one side, rest, then another 45 seconds. Repeat on the opposite side. Previous Next Start Slideshow WorkoutsBodyweight ExercisesGIF ExercisesBeginner WorkoutsAb ExercisesLeg Exercises