i'm in the same boat. i'm back on Pilates as soon as I feel up to it. i don't need to lose weight, but to firm up. i walk to and from work mostly, a distance of 4.5 miles. there are these shoes i want for my bday - they have a weight incorporated into them so i'm not worried about taht part. but to firm up, pilates is the way to go for the tummy.