What does your CF Clinic say re Exercise

I'm cross posting in case some folks look only at forums and not for latest posts: I'm wondering what different CF tell patients re exercise. Obviously it is good, but do your Centers: 1) Give specifics of what types to do and how long, like they do for nutrition (eat so many calories a day), so say exercise 20 minutes per day, jogging or stairmaster? 2) Do they ever tell you not to exercise because of weight loss and a need to preserve weight? 3) Does this change as the kids get older?? Thanks
Source: Cystic Fibrosis Exercise and Fitness Forum - Category: Respiratory Medicine Authors: Tags: Exercise & Fitness Source Type: forums