Chronic obstructive pulmonary disease
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: COPD diagnosis by pulmonary function test in line with global initiative for chronic obstructive lung disease
Exclusion criteria
Exclusion criteria: No history of thoracic and abdominal surgery and thoracic deformity, no use of drugs that affect muscle function, and other respiratory diseases such as atelectasis, pulmonary fibrosis, pneumothorax, pleural effusion, etc., excluding myasthenia gravis, phrenic nerve palsy, unstable angina, heart failure with myocardial infarction or drug control within the past 3 months, cerebrovascular lesions, limb disabilities, cognitive impairment and communication difficulties. Patients who developed an acute exacerbation of COPD during follow-up were excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diaphragm excursion;The velocity of diaphragm excursion;The rate of change in PLA; | — |
Secondary
| Measure | Time frame |
|---|---|
| FEV1 as a percentage of the projected value;FEV1/FVC;6-minute walk distance;CAT;MMRC; | — |
Countries
China
Contacts
The First Affiliated Hospital of Chongqing Medical University