Popsugar Fitness Workouts Ab Exercises to Do After You Have a Baby This Gentle 5-Minute, 5-Move Workout Will Make Your Postbaby Body Stronger Than Ever January 24, 2018 by Laura Arndt View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Pelvic Tilt Target Muscles: abs, lower back Lay back on the mat with your knees bent and your feet flat. As you inhale, rock your hips forward towards your feet. As you exhale, rock your hips back, pressing your lower back into the mat. Continue slow and controlled for 1 minute. Previous Next Start Slideshow WorkoutsPregnancyStrength TrainingBodyweight ExercisesBodyweight WorkoutsAb WorkoutsBack ExercisesBeginner Workouts5-Minute WorkoutsBack Workouts