Gaining Muscle Mass
OK, I had back surgery in the past so am careful with how I lift so I started working with a trainer over the past year. I have gotten great results (down from 27% bfi to 9%) and have loss 30 lbs of fat...ick. Here is my issue. I am 5'8 138 lbs and am a lean build and always have been as Ive been a runner most of my life.…