hey Shell, I can tell you from past experience that walking briskly will do the trick, as long as you continue to challenge yourself. When I did my "get healthy" program in the spring and summer I walked and did Callanetics (which is a combination of ballet and yoga movements). The Callanetics were fantastic for reshaping your body. My waist shrunk unbelievably using this program. Too bad I didn't stick to it!! Imagine where I would be today if I had???
Now, to get myself motivated to start again with the exercise!!!
Hope everyone has a very successful day today!