About this trial
Preserved Ratio Impaired Spirometry (PRISm) describes individual with spirometry findings of forced expiratory volume (FEV1) and forced vital capacity (FVC) ratio greater than 0.7 but with the FEV1 less than 80% predicted.
While the spirometry findings of individuals with PRISm can be transited into obstructive pattern, remains at PRISm or become normal spirometry, limited evidence is on the role of exercise in the course of PRISm. This study aims to investigate the role of exercise, namely exercise with telehealth and walking exercise, together with smoking cessation advice, would alter the clinical course of PRISm.
Eligibility criteria
Qualifiers
Age 18 or above
Smoker/ ex-smoker
Spirometry shows PRISm, with FEV1/FVC >= 0.7 and FEV1 <80% predicted
Ambulatory to walk
Disqualifiers
Age below 18
Non-smoker
Spirometry does not show PRISm/ unable to perform spirometry
Requires assistance for walking
Trial design
Treatments tested in this trial
- Exercise with telehealth group
- Exercise group
- No exercise group
Treatment groups
Sponsors and collaborators
The University of Hong Kong
Lead sponsor
Queen Mary Hospital, Hong Kong
Collaborator