I have always lifted weights doing the traditional 3 sets of 8-12 with the heaviest weight that I can do to accomplish 3 sets. I was speaking to a PT at a party and she said she would do 3 sets of 25 at the heaviest weight you can do to accomplish 3 sets of 25. My ultimate goal would to be tone and strong. I still have another 10-15 pounds to lose.
Thanks