Aerobic Activity
This is body movement that increases your heart rate. Some aerobic activities—basketball, gymnastics, jumping rope, lacrosse, running, soccer and swimming—are more beneficial than others. More sedentary activities, like golf and baseball, are still fun but will not have as much of an impact on lung function.

Weight Training
Lifting weights three times a week improves muscle strength and cardiovascular function. It helps fight osteoporosis by making bones stronger. Increasing the amount of weights will improve results. A good rule of thumb is to increase the current weight when you can do three sets of eight repetitions. Muscles should have at least a one-day break between workouts.

Posture
Proper posture is something most of us forget about, but poor posture can place stress on our bodies and adversely affect our lungs. Take a deep breath while sitting upright, then slump over and take a deep breath. When you sit upright, you can get more air into your lungs than when you slouch. But people with CF tend to sit in a more slouched posture because of all of the coughing they do. Exercises such as squeezing your shoulder blades together ten times, which you can do throughout the day, will help strengthen the muscles that help you maintain good posture.