Which sports/physical activities are good for someone with cystic fibrosis?

Depends on Lung Fx: The level of physical activity for a child with CF is an individual choice that should be made in consultation with the treating physician. However, there has been some interesting research done in australia, which suggests Hypertonic Saline (e.g., salty air) inhalation in CF patients was beneficial in maintaining lung function. Why? A doctor noticed surfers with CF tend to have better outcomes!

What you tolerate: Depending on your fev1, lean muscle mass, and weight, you may be able to do near normal levels of exercise. Talk to your CF center to get a program going for you; if you qualify for pulmonary rehabilitation that is a good way to start. If not, daily exercise usually helps with both airway clearance and keeping exacerbations at bay.