Popsugar Fitness Workouts Quick Ab Workout You Can Do at Home Tighten Your Lower Abs in 5 Minutes With This Lightning-Fast Workout March 30, 2017 by Dominique Michelle Astorino View On One Page Photo 6 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 Previous Next Start Slideshow WorkoutsCelebrity TrainersStrength TrainingBodyweight ExercisesBodyweight WorkoutsAb WorkoutsGIF ExercisesIntermediate Workouts5-Minute WorkoutsAb Exercises