Pulmonary rehabilitation: the treatment breathless people need most and are referred for least
Division of Pulmonary Medicine, Taipei Veterans General Hospital Hsinchu Branch · Pulmonary rehabilitation health information
Related symptomBreathlessness, difficulty breathing Related conditionsChronic obstructive pulmonary disease・Pulmonary fibrosis
Mr. Chang is seventy-two, with stage 3 COPD. He had used his inhalers regularly for two years and his numbers had settled, but he still said: “Doctor, I take everything you give me, and I still can’t walk far.” Last year he was admitted twice with an acute exacerbation, and after each discharge he was even less willing to go out — afraid of getting breathless, so he did not move; and not moving, his muscles wasted; and with the muscle gone, a few steps left him more breathless still.
This time, before he went home, I did not add another medicine. I referred him for pulmonary rehabilitation. Eight weeks later he came back to clinic and his lung function numbers had barely changed — his FEV1 was just as it had been. But his six-minute walk distance had gone from 280 metres to 390 metres, and the difference that mattered most, he said, was that he could now walk his grandson to the park.
That is the hardest thing about pulmonary rehabilitation to explain, and also the most important: it does not make the lungs better, it makes the person better.
What is pulmonary rehabilitation?
Pulmonary rehabilitation is an integrated treatment built around exercise training, aimed at the disability that chronic respiratory disease causes, and delivered together by doctors, respiratory therapists, physiotherapists, dietitians and case managers.
It is not just “get more exercise”, and it is not a health education class either. The international definition stresses three elements: a full assessment first, then an individualised exercise prescription, and support for changing behaviour as part of it.
Why medicines alone are not enough
Chronic lung disease sets off a vicious circle: breathlessness → being afraid to move → muscle loss and falling cardiorespiratory fitness → the same activity leaves you more breathless → even less willing to move.
Inhalers act on the airways and can make the airflow a little easier, but they cannot bring back muscle and fitness that have already been lost. That is why some people whose lung function numbers are perfectly stable find their quality of life keeps getting worse — the problem is no longer only in the lungs. It is exactly this circle that pulmonary rehabilitation breaks into.
Who needs it?
The 2023 clinical practice guideline from the American Thoracic Society (ATS) gives explicit recommendations for different groups:
| Group | Recommendation | Strength and evidence |
|---|---|---|
| Chronic obstructive pulmonary disease (COPD), stable | Refer for pulmonary rehabilitation | Strong recommendation Strong evidence |
| After an admission for an acute exacerbation of COPD | Refer for pulmonary rehabilitation | Strong recommendation Strong evidence |
| Interstitial lung disease | Refer for pulmonary rehabilitation | Strong recommendation Strong evidence |
| Pulmonary hypertension | Refer for pulmonary rehabilitation | Conditional recommendation Limited |
| Chronic respiratory disease, centre-based vs telerehabilitation | Let the patient choose | Strong recommendation Strong evidence |
| COPD, after completing an initial programme | Either a maintenance programme or usual care | Conditional recommendation Limited |
In the GRADE system, a “strong recommendation” means that the great majority of people in this situation would choose to have this treatment. It is worth noting that interstitial lung disease carries the same strong recommendation as COPD — a point that is often overlooked in practice.
The period after an admission is the golden window
The time after an admission for an acute exacerbation is when fitness falls away fastest, and also when rehabilitation does the most good. The guideline lists “refer after an admission” as a strong recommendation in its own right, precisely because this period is so critical.
And yet in practice it is also the step most easily skipped — at discharge everyone is busy explaining how to take the medicines, and pulmonary rehabilitation rarely comes up. If you or a family member have just been in hospital with a lung problem, this is worth asking the doctor about yourself before you go home.
What does pulmonary rehabilitation include?
1. Exercise training — the core, and nothing replaces it
- Aerobic training: walking, a bicycle or a treadmill, at an intensity set by the assessment, not “a bit of a stroll”.
- Resistance training: for the upper and lower limb muscle groups. Lower limb training improves how well you walk; upper limb training improves the everyday movements — washing your hair, hanging out the laundry, putting something up on a shelf.
- Respiratory muscle training: added if the assessment calls for it; not everybody needs it.
2. Managing your own disease
Inhaler technique (this one matters more than people imagine), how to recognise the early signs of an acute exacerbation, when to come back to clinic, and how to use an action plan.
3. Nutritional assessment
Both extremes have to be dealt with in chronic lung disease: being underweight with sarcopenia leaves the respiratory muscles weak, while being overweight increases the work of breathing. Both affect exercise tolerance.
4. Psychological and behavioural support
Breathlessness and anxiety amplify each other. “Afraid of getting breathless, so afraid to move” is itself a problem that needs addressing, not a failure of willpower.
5. Stopping smoking
For anyone still smoking, this remains the single intervention with the greatest benefit of all. See chronic obstructive pulmonary disease for more.
How does a programme run?
| Item | Usual practice |
|---|---|
| Length of the programme | Most programmes run for 6–12 weeks |
| Frequency | 2–3 times a week, with supervised training |
| Length of a session | About 1–2 hours (including warm-up, training and education) |
| Before starting | A full assessment: lung function, a six-minute walk test, muscle strength, nutritional state and symptom scores |
| During the programme | Blood oxygen and heart rate are monitored; oxygen is given during exercise if needed |
| At the end | The six-minute walk test and the symptom scores are repeated and compared with the ones from before |
Will the benefit stay?
It will — for a while. The benefit of pulmonary rehabilitation gradually fades over about 6–12 months after the programme ends, unless the exercise habit is kept up. On the question of whether to go on to a supervised maintenance programme, ATS 2023 gives only a conditional recommendation (the evidence is limited) — which is to say, what matters is not whether you join a maintenance class, but whether you keep moving.
So the most important thing at the end of a programme is not the report showing how much you improved; it is a home exercise plan that you can manage and will actually keep doing.
How much does it help?
To put it plainly: pulmonary rehabilitation does not improve the lung function numbers. FEV1, FVC and the other values you blow out are usually much the same afterwards as before.
What it does improve is three other things, and all three are supported by randomised trials:
- How breathless you feel Strong evidence— the same activity does not feel as breathless.
- Exercise tolerance Strong evidence— the six-minute walk distance increases, and the improvement is usually larger than the threshold at which a patient notices it themselves.
- Health-related quality of life Strong evidence— the one most people actually care about.
For pulmonary rehabilitation after an admission with an acute exacerbation, there is separate evidence that it can reduce readmissions Moderate.
On whether it can reduce mortality, the evidence as it stands is still inconsistent, and this page makes no such claim. The value of pulmonary rehabilitation lies in letting people do more and live more comfortably — that is important enough in itself, and needs nothing added to it.
How is it arranged in Taiwan, and do you have to pay for it?
This is the part most often asked in clinic, and the hardest to answer in one sentence. Taiwan has no single National Health Insurance (NHI) item called “pulmonary rehabilitation”; in practice it is assembled out of several different services:
- The assessment (lung function, the six-minute walk test) is usually arranged in the chest medicine clinic
- The exercise training may take place in rehabilitation medicine, in a respiratory therapy unit or in a cardiopulmonary rehabilitation room, depending on how each hospital is organised
- Education and self-management are mostly handled by respiratory therapists or case managers
So coverage has to be determined item by item, and the way it is arranged differs from hospital to hospital: some items are covered by the NHI, some are self-paid or part of a hospital’s own programme.
Three questions you can simply ask in clinic
- “In my situation, am I suitable for pulmonary rehabilitation?”
- “How is it arranged in this hospital? Which department would I go to?”
- “Which items are covered by the NHI and which are self-paid? Roughly what would the whole programme cost?”
Asking and then deciding is far more use than finding a figure online that does not apply to you.
What you can do yourself before you start
There is no need to simply wait while things are being arranged. These are low-risk starting points that need no equipment:
- Diaphragmatic breathing: one hand on your chest and one on your belly; breathe in slowly through your nose so that the belly rises, keeping the chest as still as you can.
- Pursed-lip breathing: breathe out slowly, as though blowing out a candle, taking longer over the breath out than the breath in. It is particularly useful when you are getting breathless.
- Walking every day: start at the level where you are “a little breathless but can still talk”, and lengthen the time gradually rather than going for distance all at once.
- Upper limb movement: sitting down, raise your arms over your head, or do simple arm movements holding a plastic bottle, ten at a time.
For demonstrations of the movements, see the pulmonary rehabilitation exercises health education material from the Department of Nursing, Taipei Veterans General Hospital[4]. If you get chest pain, dizziness or a cold sweat while exercising, or your blood oxygen falls noticeably, stop at once and seek medical help.
Situations that have to be dealt with first, where it is not suitable to start straight away
- An unstable cardiac condition (a recent heart attack, unstable angina, an uncontrolled arrhythmia)
- An acute exacerbation that is still going on — that should be treated first, and the programme started once things are stable
- Severe, uncorrected low blood oxygen
- Cognitive or mobility problems that would make exercising safely impossible
Most of these are a matter of “deal with it first, then do it”, rather than never being able to do it. Please have it assessed by a doctor.
References
- Rochester CL, Alison JA, Carlin B, et al. Pulmonary rehabilitation for adults with chronic respiratory disease: an official American Thoracic Society clinical practice guideline. Am J Respir Crit Care Med. 2023;208(4):e7-e26.
- Spruit MA, Singh SJ, Garvey C, et al. An official American Thoracic Society/European Respiratory Society statement: key concepts and advances in pulmonary rehabilitation. Am J Respir Crit Care Med. 2013;188(8):e13-e64.
- Global Initiative for Chronic Obstructive Lung Disease. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: 2026 report. GOLD; 2025. Available from: https://goldcopd.org/2026-gold-report/
- 臺北榮民總醫院護理部. 肺部復健運動. 健康 e 點通. Available from: https://ihealth.vghtpe.gov.tw/media/388 [In English: Department of Nursing, Taipei Veterans General Hospital. Pulmonary rehabilitation exercises. iHealth.]
References follow the ICMJE (Vancouver) style. Guidelines and official documents are given with their version or year of publication; legislation and National Health Insurance (NHI) rules are given with the responsible authority and the version date. Last checked: 12 October 2026.
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