you need to really work out those muscles. men need those muscles in particular to support our backs. unlike women, our abdominal fat is under the layer of muscle (advantage for looks only). a normal person "should" be able to do 200 sits ups at any given point and not have a problem with it. I would say work on that, then use some resistance with your sit ups (crunches) to bulk them up, making sure you get all your abdominal muscles. (you have vertical, horizontal, and transverse).









