Pilates.....

I've tried it. The exercises are very slow, deliberate and breathing is very important. There is a special way of breathing and a special way of doing all the moves. Don't let it fool you, I found it very hard.

A couple of the exercises do open up the spine and I found them very relaxing, but overall, I would never enroll again. I prefer exercise that's lively and energetic with music, something like jazzercize.