Posted on the CF Message Board by a CrossFiter named Kelly Rakow:
My experience as a CF Trainer and Affiliate owner for almost three years is that not one of the 180+ women we have trained has gotten bigger and stayed bigger. I have seen a couple women get bigger as the body begins its transformation. However, bigger is temporary. Usually lean mass increases first. Shortly thereafter, a layer of fat melts off the top of the newly acquired lean mass. As soon as that happens, the women are thrilled. For the clients that incorporate a zone/paleo approach to nutrition, the results come quickly and without fail. For those that do not make dietary changes, the process takes longer.
For those women that experience muscle growth aka “get bigger,” it’s important to help them through this process. There will be doubt on their part that you know what you are doing. They may choose not to come on the weightlifting days becasue they are sure the bars and plates will make them “big.” As we all know, the last thing women want is for their legs or butt to look any bigger. Therefore, we make it a point to assure our clients that patience is a virtue as far as body composition change is concerned. We educate our clients about how muscle growth typically occurs before the fat melts off. Additionally, we educate people about the importance of the weightlifting component. Not doing the lifts for fear of getting bigger is not an option. CrossFit programming done correctly keeps the furnace burning and the bulk at minimum.
I tell all our CrossFitters to be their own guinea pig. Try it. Track the results. Evaluate. Make necessary changes. Be open to new ideas and possibilities. Most of all, be patient and trust the process.