Pulmonary Rehabilitation

Pulmonary rehabilitation (PR) is one of the most effective treatments available for chronic respiratory disease — yet it remains one of the most underused. The 2023 ATS clinical practice guideline strongly recommends PR for COPD, ILD, and pulmonary hypertension based on evidence showing meaningful improvements in exercise capacity, quality of life, and symptoms.^[1]

What Is PR

A comprehensive, patient-tailored program

The ATS and ERS define PR as a comprehensive intervention based on thorough patient assessment, followed by patient-tailored therapies including exercise training, education, and behavior change, designed to improve the physical and psychological condition of people with chronic respiratory disease.^[1,2]

What PR includes

Exercise training: The cornerstone of PR. Includes aerobic exercise (walking, cycling, treadmill), strength/resistance training (upper and lower extremity), and flexibility work. Sessions are individually prescribed and progressively advanced.^[1]
Education: Disease self-management, breathing techniques, energy conservation, medication use, nutrition, and recognizing exacerbations.
Behavior change and self-management: Building long-term habits, goal setting, and developing confidence to manage symptoms independently.
Psychosocial support: Addressing anxiety, depression, social isolation, and coping strategies. Group settings provide peer support.
Nutritional assessment: Screening for malnutrition (common in advanced COPD) or obesity, with individualized guidance.

Program structure

Duration: Typically 6–12 weeks, with 2–3 supervised sessions per week. Longer programs (≥12 weeks) may produce more sustained benefits.^[1]
Setting: Outpatient hospital-based or community-based programs. Supervised by a multidisciplinary team including respiratory therapists, physiotherapists, exercise physiologists, nurses, and physicians.
Telerehabilitation: The 2023 ATS guideline supports telerehabilitation as a delivery model for COPD, with evidence showing comparable outcomes to in-person programs and improved completion rates.^[1]
Maintenance PR: After completing an initial program, ongoing exercise (structured or independent) helps sustain gains.

Evidence

What does the evidence show?

The evidence base for PR is extensive, with over 80 randomized controlled trials for COPD alone. The 2023 ATS clinical practice guideline used the GRADE framework to formulate its recommendations.^[1]

COPD (stable)

Strong recommendation (high-quality evidence): PR significantly and clinically meaningfully improves exercise capacity (6-minute walk distance), dyspnea, and health-related quality of life in stable COPD.^[1]
82 RCTs including 4,674 patients with stable COPD were analyzed.^[1]
38 trials evaluating 6-minute walk test (6MWT) demonstrated significant and clinically meaningful improvement after PR.
Improvements in peak work rate (16 trials) and incremental shuttle walk test (8 trials) were also demonstrated.
PR reduces hospital admissions and mortality risk after hospitalization for COPD exacerbation.^[1]

COPD (post-hospitalization)

Conditional recommendation (moderate-quality evidence): PR initiated within 2–4 weeks of hospital discharge after a COPD exacerbation reduces readmissions and improves exercise capacity, quality of life, and dyspnea.^[1]
This is a critical window — patients are at highest risk of readmission in the first 30 days after discharge.
Early enrollment in PR after hospitalization is a key quality measure yet remains underutilized.

Interstitial lung disease (ILD)

Conditional recommendation (low-quality evidence): PR improves exercise capacity (6MWT), dyspnea, and quality of life in people with ILD, including IPF.^[1]
13 trials evaluated exercise capacity, demonstrating significant and clinically meaningful improvement that was maintained at 6–12 months.
In the context of progressive, high-mortality diseases like IPF, even moderate improvements are clinically meaningful.
PR does not change lung function (FVC) but improves how patients use their existing capacity.

Pulmonary hypertension

Conditional recommendation (low-quality evidence): PR improves exercise capacity and quality of life in patients with pulmonary hypertension.^[1]
Exercise training should be supervised and tailored to account for hemodynamic limitations and syncope risk.
Recommended by both the 2023 ATS PR guideline and the 2022 ESC/ERS PH guidelines.
Programs with PH expertise are preferred due to safety considerations.

Other conditions with evidence for PR benefit

Asthma: Evidence supports exercise training in asthma to improve fitness, reduce symptoms, and improve quality of life. Exercise does not worsen well-controlled asthma.
Bronchiectasis: PR improves exercise capacity and quality of life. Often combined with airway clearance techniques.
Pre- and post-lung surgery: Prehabilitation before lung resection and rehabilitation after surgery improve recovery and outcomes.
Lung transplantation: PR both before (listing fitness) and after (recovery and functional capacity) transplantation.
COVID-19 recovery: Growing evidence supports PR for persistent dyspnea and deconditioning after COVID-19.

Benefits

What PR can do for you

Proven outcomes

PR is one of the few interventions in pulmonary medicine with this breadth of evidence across multiple outcome domains.

Improved exercise capacity and walking distance

Reduced shortness of breath during daily activities

Improved health-related quality of life

Reduced anxiety and depression

Reduced hospital admissions (COPD)

Improved self-management and disease understanding

Increased confidence and independence

What to Expect

A typical PR program

Initial assessment

A comprehensive assessment by the PR team before starting the program.
Includes review of medical history, current medications, oxygen needs, functional limitations, and goals.
Baseline testing (see testing section below) to set exercise prescriptions and track progress.
Screening for anxiety, depression, nutritional status, and fall risk.
Individualized exercise prescription based on your assessment results.

Exercise sessions

Sessions are typically 60–90 minutes, 2–3 times per week.
Aerobic exercise: Walking (treadmill or track), stationary cycling, or arm ergometry. Intensity is prescribed based on your baseline test results and progressed gradually.
Resistance training: Upper and lower body exercises using weights, resistance bands, or body weight. Improves muscle strength and endurance.
Flexibility and balance: Stretching and balance exercises to reduce fall risk and improve mobility.
Oxygen saturation, heart rate, and symptoms are monitored during exercise. Supplemental oxygen is provided if needed.
Intensity is increased progressively — the goal is to push your limits safely, not to stay comfortable.

Education sessions

Group or individual education sessions covering topics such as breathing techniques (pursed lip breathing, diaphragmatic breathing), energy conservation and pacing, medication management and inhaler technique, nutrition, managing exacerbations, and advance care planning.
Education is not lecture-based — it is interactive and focused on practical self-management skills.

Graduation and maintenance

At the end of the program, you repeat baseline testing to measure improvement.
You receive an individualized home exercise plan to maintain your gains.
Some programs offer maintenance sessions (weekly or monthly) for ongoing support.^[1]
The 2023 ATS guideline supports either structured maintenance PR or usual care with encouragement to continue regular exercise after initial PR in COPD.
The most important thing after completing PR is continuing to exercise regularly.

Testing

Assessments before and after PR

Standardized testing allows the PR team to prescribe exercise safely, track your progress, and measure the program's impact.

Exercise capacity tests

6-minute walk test (6MWT): The most commonly used test in PR. You walk as far as you can in 6 minutes on a flat course. Distance, oxygen levels, heart rate, and symptoms are recorded. A change of 30 meters or more is considered clinically meaningful.^[1,3]
Incremental shuttle walk test (ISWT): You walk between two cones 10 meters apart at increasing speeds guided by audio beeps. Tests maximal exercise capacity.
Cardiopulmonary exercise testing (CPET): The gold standard for measuring exercise capacity. Provides detailed data on heart, lung, and metabolic function during exercise. Used for complex cases or when the cause of exercise limitation is unclear. Learn more about CPET →

Lung function and symptom assessments

Spirometry: Measures FEV1 and FVC. PR does not typically change spirometry values, but provides a baseline for disease staging.
Pulse oximetry: Resting and exercise oxygen levels. Determines if supplemental oxygen is needed during exercise.
Quality of life questionnaires: St. George's Respiratory Questionnaire (SGRQ), COPD Assessment Test (CAT), or Chronic Respiratory Questionnaire (CRQ). Completed before and after PR to measure perceived improvement.
Dyspnea scales: Modified Medical Research Council (mMRC) dyspnea scale or Borg breathlessness scale during exercise.
Anxiety and depression screening: Hospital Anxiety and Depression Scale (HADS) or PHQ-9 and GAD-7.
Muscle strength testing: Handgrip dynamometry, quadriceps strength, or 30-second sit-to-stand test.

Tips for getting the most from PR

Attend every session: Consistency matters more than intensity in the early weeks. Attendance is the strongest predictor of benefit.
Push yourself during exercise: PR is not gentle stretching — the exercise needs to be challenging enough to produce physiologic improvement. Some breathlessness during exercise is expected and safe. Your team monitors you.
Set personal goals: What do you want to be able to do? Walk to the mailbox, climb stairs, play with grandchildren, travel? Share these with your team.
Exercise on non-PR days too: Walking at home on your off days accelerates improvement. Even 20–30 minutes helps.
Take your inhalers correctly: Optimized medication use complements PR. Review inhaler technique →
Don't stop after graduation: The benefits of PR are maintained only if you continue exercising. Ask about maintenance options or community exercise programs.
Talk to your doctor about a referral: PR is significantly underused despite strong evidence. If you have COPD, ILD, PH, or other chronic lung disease and have not been offered PR, ask about it.

Pulmonary rehabilitation is one of the most effective treatments for chronic lung disease, yet fewer than 5% of eligible patients are referred to or complete a program. Access barriers include limited program availability, transportation, and awareness. Ask your clinician if PR is appropriate for you.^[1]

Trusted resources

References

Holland AE, Cox NS, Houchen-Wolloff L, 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):e13-e36. doi:10.1164/rccm.202306-1066ST
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. doi:10.1164/rccm.201309-1634ST
Holland AE, Spruit MA, Troosters T, et al. An official European Respiratory Society/American Thoracic Society technical standard: field walking tests in chronic respiratory disease. Eur Respir J. 2014;44(6):1428-1446. doi:10.1183/09031936.00150314