answer:If you suffer from scoliosis, it’s always best to consult a physician before initiating a new workout regime. Even light yoga can be harmful for your back in that situation if you are holding poses that stretch your back. I don’t have experiences with Pilates (I’ve only done yoga myself because my friend is a yogi) but it’s best to be safe about these things – especially when moving into a more intensive program. From what I have heard, Pilates and Ashtanga yoga (tried it.. my body hated me after in a good way but I’m not ready to do it often) will give you more of a workout.