I don't know if you can answer this but I'm gonna give it a try. I have a condition called cranial dystonia. I started to get botox injections in the front of my throat 2 months ago, meaning I have lost some muscle control in the front of my neck. When I lay down on my back and try to do a sit-up with my arms out, my head falls backwards. I use my abs but I am now having a harder time with sit-ups. If I don't support my head well, then my head goes back and the front gets sore. My question is, do I want to go ahead and let it get sore to help build up some new muscles in my neck or am I left with just doing basic crunches? When you do them with the ball in your hands, I am having a hard time with that. I have to modify. If I just do the basic, will I still get the same effect from them?