When you are sore it is good to rest or take some precautions. Here is a site with information related to your question: http://www.freetrainers.com/FT/jsp/Message.jsp?f_ix=0&t_ix=386 - - - - - - [Excerpt from website] - - - - - - Question: Some times when I work out my muscles get sore, but some times it doest... i was wondering why... is it because my body got used to weights or what? when I work out I work out very very intense, i work with very heavy weights 4-8 reps max... 3 sets.. but my muscles still doest get that sore .... should I work out even more intense? what am I doing wrong. any comments might help.. thanks for your time . . . . . . . SeanyBoy Hey Sean, YES. Yes your muscles should be sore after each workout. Even if it is just a bit. This pain / soreness tells you that you have torn the muscle fibers - and they will repair and adapt - therefore become stronger and larger. Maybe you need to concentrate on range of motion. It is very key to remember to get a FULL stretch and FULL contraction of the muscles at work - every rep of every set.

You're gonna be sore at first. Take time off when you first start to let your muscles repair themselves. Then you can get into the groove. I use creatine to help repair my muscles. I don't know if women should take it or not.