Glad to hear you had success with Pilates!! I guess it depends on the person, whether or not it works for them. Not too far into the work out, I wound up stuck on the floor, unable to move for awhile. My back went into full spasm.
I decided to try Yoga, and that was my new found miracle!! Along with a very low-carb diet. I've lost 10 lbs in 1 month.

I found the Yoga's breathing techniques much easier, well, everything much easier!

I gave my Pilates video to the doctor that I work with. She is very in shape and healthy, but she does have severe scoliosis (it's visually obvious). She tried the Pilates and about died, also. She said that she couldn't believe that I had tried it (since I have AS), and should probably avoid it indefinatly. Stick with Yoga and low impact aerobics.
Doctors orders, no more pilates. We laugh at our gimpy selves all the time. Love her to pieces!
I'm always glad to hear when someone has found something that helps!! YEA!

Take care!
Stacie