Popsugar Fitness Workouts Are Crunches Bad For Your Back? Crunches Are Bad For Your Back — Here Are 10 Ab Exercises to Do Instead January 21, 2019 by Tamara Pridgett View On One Page Photo 10 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 10 Previous Next Start Slideshow Fitness TipsWorkoutsCore ExercisesBack PainInjury Prevention