Before hurting my back w/this work out, this is what I said, "This is a fun work out, and yu really don't feel like you are doing a work out but having fun." The reason I rated it a 2 is b/c I have always been in great, great shape, I am very athletic, I do The Firm, Tae Bo but be very, very careful b/c I hurt my back doing this work out, and I now am on medication and have to go to therapy 2ce a week. My therapist says the reason she is not to excited about hip hop abs is due to the side to side movement you do on your abs, that can hurt your back the way I hurt mine. I am in so much pain now due to the work out,I only wish this did not happen to me b/c it was a lot of fun. I am no longer the same I now have limitations, I do my therapy exercises and now do Tony Little b/c he gives u alternative methods (Tony Little) of doing yor work out if you have back problems. So, please, please be careful w/this work out, I would hate for you guys to be in as much pain as I am. I hope that my back gets better b/c I no longer feel like the healthy athlete person, but a 70 year old woman w/back problems. Thank god I am military b/c TriCare pays for my therapy sessions.