Yes. Exercise is an important part of the management of pulmonary fibrosis. There are specific programs known as pulmonary rehab, that incorporate exercise and oxygen therapy to help maintain your lung function.
Yes and no. Exercise is good but does not change your lung disease.
Yes. Keeeping the lungs as full function for as long as possible is always good.
Not necessarily. A decrease in the amount of exercise you can do can be caused by decreasing lung function but could also be caused by a lot of other things. You might have decreasing cardiac function decreasing muscle strength/endurance or worsening anemia just to name a few. Blood test and scans of various types would help to sort out the cause of your decreasing exercise tolerance.
No. Pulmonary fibrosis is a very uncommon condition, but many common reasons for excercise intolerance are, for instance asthma, obesity, being out of shape, heart problems, etc.
Not necessarily... There are many possible explanations for less exercise tolerance. If you are experiencing this symptom, see your doctor for an evaluation. Exercise pulmonary testing can be done to diagnose this symptom.
Not likely. Pulmonary fibrosis is a very rare diagnosis. There are many other more common causes of reduced exercise tolerance.
Exercise. You need both kinds of exercise. At least half hour daily of cardio and at least 3 weight sessions a week.
Cardio. You have to be careful when exercising as you want your oxygenation to remain above 88%. I tend to tell my patients that cardio is a better exercise for them as weight lifting can be associated with big swings in your blood pressure and valsalva that could precipitate an episode of syncope"passing out". As usual, everything with moderation is better and talk to your doctor before doing exercise.