Alternative Exercises Lying Leg Raise, Double Crunch, Lying Leg Raise to Butt Up  

Alternative Exercises Twisting Side Plank, Side Plank, Plank Hip Dip  

Alternative Exercises Dumbbell Roll Up, Sit-up  

Alternative Exercises Weighted Twisting Crunch, Dumbbell Plank Pull Through  

Alternative Exercises Barbell Ab Roll Out, Hollow Hold