title: The ventilatory function of abdominal muscles in normal subjects and in patients with chronic obstructive lung disease. An electromyographic study.
mesh_terms: D000009:Abdominal Muscles / Q000502:physiology* / Q000503:physiopathology; D000328:Adult; D000402:Airway Obstruction / Q000175:diagnosis; D002908:Chronic Disease; D004576:Electromyography; D006801:Humans; D006985:Hyperventilation; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011187:Posture; D011656:Pulmonary Emphysema / Q000175:diagnosis; D012119:Respiration; D012129:Respiratory Function Tests; D012146:Rest