I did a pilates course and I found it really really works!! I was doing the whole body one though, so of course you might have different results, with your injury and all. I found i lost lots of inches with it and felt leaner. I also really enjoyed it. Ive been trying to find a dvd as good as the classes i went too, but to no avail.
I think any movement has got to be good, so well done you for keeping it up whilst your injured, it would be so easy to just slip into your old ways because of your injury.
30th Birthday Goal! 7 months to go!