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 4 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Single-Leg Bridge: 60 Seconds Lie on your back, and place your hands on the floor for stability as you bend one leg and lift the other leg off the ground. Pressing your heel into the floor, lift your pelvis up, keeping your body in a stiff bridge position. Slowly lower your body to the floor and repeat for 60 seconds. Previous Next Start Slideshow WorkoutsCelebrity TrainersStrength TrainingBodyweight ExercisesBodyweight WorkoutsAb WorkoutsGIF ExercisesIntermediate Workouts5-Minute WorkoutsAb Exercises