Chronic obstructive pulmonary disease
Conditions
Interventions
Control group:N/A
Medical protective mask group:Medical protective mask
Medical surgical mask group :Medical surgical mask
Sponsors
Affiliated Hospital of Gansu University of Chinese Medicine/ Gansu University of Chinese Medicine
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: ?Persistent airflow limitation : the ratio of forced expiratory volume to forced vital capacity (FEV1/ FVC)<70 % in the first second after inhalation of bronchodilators, and FEV1 (% predicted) =30%; ?No symptom aggravation or medication change within 4 weeks; ?Oxygen saturation (SpO2 %)=90% in quiet state; ?No related motor or nervous system diseases; ?Informed consent; ?Patients who could participate in this trial after evaluation by relevant professional clinicians.
Exclusion criteria
Exclusion criteria: ?Long-term oxygen therapy; ?Resting heart rate > 120 beats/min; ?Systolic blood pressure > 180 mmHg and diastolic blood pressure > 110 mmHg; ?Those with mobility difficulties; ?Special groups such as pregnant women; ?Has learning and cognitive impairment and has been diagnosed with Alzheimer 's disease and depression; ?Patients with absolute contraindications for 6-minute walk test, such as acute infectious diseases; ?Patients with allergic constitution; ?Stated unwilling to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Oxygen saturation;6 minutes walking distance; | — |
Secondary
| Measure | Time frame |
|---|---|
| Pulse;Blood pressure;Borg score;Rating of Perceived Exertion;Subjective feeling score; | — |
Countries
China
Contacts
Public ContactFan Jingchun
Gansu University of Chinese Medicine
Outcome results
None listed