I'm thinking of starting one of these but I don't know what the difference is. Basically I want to so something that : 1. Will improve my fitness, flexibility etc 2. Is relaxing, 3. Will keep my back exercised and strong as I have a history of mild lower back problems which I think are only going to recure more frequently with age 4. I am not great at keeping up classes so ideally it should be an activity I will enjoy and hopefully feel the benefit of pretty early on (even if that is a stretching/calming benefit). Also - I don't want to spend too much on classes so will prob buy a video to do at home after the first set of classes and then maybe go back from time to time for a class situation.
Any advice ?