Minimal vs Specialized Exercise Equipment for Pulmonary Rehabilitation: A Randomized Clinical Trial

Area of Science:

• Respiratory Medicine
• Rehabilitation Science
• Clinical Trials

Background:

• Pulmonary rehabilitation (PR) significantly benefits individuals with chronic respiratory conditions by improving exercise tolerance, reducing symptoms, and enhancing quality of life.
• The demand for PR often exceeds its supply, necessitating exploration of alternative delivery methods.
• Traditional PR programs typically utilize specialized gym-based exercise equipment.

Purpose of the Study:

• To determine if PR using minimal equipment (PR-min) is noninferior to PR using specialist gym equipment (PR-gym).
• To evaluate the impact of PR-min on exercise capacity, dyspnea, and health-related quality of life.

Main Methods:

• A parallel, 2-group, blinded, noninferiority randomized clinical trial was conducted.
• Participants with chronic respiratory disease were randomized to either PR-min (minimal equipment) or PR-gym (specialist equipment).
• Both programs involved 8 weeks of supervised outpatient sessions twice weekly. The primary outcome was change in incremental shuttle walk distance at 8 weeks.

Main Results:

• A total of 436 participants were enrolled. PR-min demonstrated noninferiority to PR-gym in improving incremental shuttle walk distance (mean difference: 1.7 m; 97.5% CI lower bound: -16.8 m), within the predefined -24 m margin.
• Both interventions led to significant improvements in exercise capacity, with no significant between-group differences.
• Secondary outcomes, including dyspnea and health-related quality of life, showed similar improvements in both groups. No excess adverse events or costs were observed.

Conclusions:

• Minimal equipment pulmonary rehabilitation (PR-min) is a viable and effective alternative to traditional gym-based PR, demonstrating noninferiority in improving key patient outcomes.
• PR-min offers a scalable solution to increase PR accessibility by enabling its delivery in diverse settings.
• This approach holds significant potential to expand the reach of pulmonary rehabilitation services to more patients with chronic respiratory diseases.