I have had a sore back for a few weeks but it is slowly getting better with rest and meds. I think I hurt it running(too much too soon and improper form). I decided to just walk fast for a few weeks and start pilates. I have done pilates once and loved it. Well, my question is would I see results by walking 5x/wk and doing pilates twice a week until I can start back on wts? I am trying to lose about 15 more lbs, I've already lost 15lbs recently. I want to make sure I am exercising enough but I'm scared I'll hurt myself again. What do you think?