None
Conditions
Interventions
Normal-weight group( BMI between 18-23.9kg/m^2 ):None
Overweight group( BMI between 24-27.9kg/m^2 ):None
Obese group (BMI>28kg/m^2):None
Sponsors
Hebei General Hospital
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: (1) Age >= 18 years old; (2) No obvious abnormal lung diseases were found through lung CT, chest X-ray, or lung ultrasound examination; (3) Informed consent is given to all research methods, and a voluntary informed consent form is signed.
Exclusion criteria
Exclusion criteria: (1) Being in the acute phase of cardiovascular and pulmonary diseases (including acute myocardial infarction, heart failure, respiratory failure, pleural effusion, or requiring life support equipment to maintain cardiovascular and pulmonary function, etc.); (2) Severe chronic heart and lung meridians, such as heart disease, cardiomyopathy, congenital heart disease, pulmonary interstitial fibrosis, chronic obstructive pulmonary disease, etc; (3) Respiratory center related diseases, neuromuscular conduction disorders related diseases, diaphragmatic lesions, motor neuron related diseases, etc; (4) History of lung, mediastinal or abdominal surgery or tumors; (5) Received invasive mechanical ventilation treatment within 3 months; (6) Pregnant; (7) Poor compliance of subjects, inability to cooperate in completing the study, inability to obtain clear ultrasound images, or other factors that are not suitable for inclusion in the study; (8) Participating in other intervention studies.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diaphragm excursion;Diaphragm excursion during deep inspiration; | — |
Secondary
| Measure | Time frame |
|---|---|
| Diaphragmatic contraction velocity;Diaphragm peak contraction velocity; | — |
Countries
China
Contacts
Public ContactZhao Haotian
Hebei General Hospital
Outcome results
None listed