Our daughter (almost 10) is an Orange belt in Okinawa Kempo (Karate do). She has being doing it for over 2 years now. She is a fish at the pool with 'No Fear". I have her and the rest of my family in a running program. She almost at the 1 mile mark (.875 in 10 min). Why? Because based on everything that I have read out about Csystic Fibrosis? You have to own your body and get at your optimal physical shape. Almost to the point of a Fitness Nut/Gym rat. The other options off course, are treatments, medicine, etc. I have read articles from individuals male and female who are athletes. Triathletes, marathon runners and so on that they only do the vest on average once or twice per day. Their PFT are at almost 95 or better. Even one guy here at this blog who did P90X and brought his PFT up. Do your homework, be the judge and figure out what is best for your child. Our daughter, because is a Orange belt goes toe to toe and spar with anybody in the Dojo, boys or girl. Whether she wins or gets her butt kick, it doesn't matter. She is taugh to never quit and to never give up.We always wanted for her to have normal life. And she is....