title: Ventilatory levels and chest wall mechanics during exercise in obstructive lung disease.
mesh_terms: D000009:Abdominal Muscles / Q000503:physiopathology; D000328:Adult; D000368:Aged; D006801:Humans; D007366:Intercostal Muscles / Q000503:physiopathology; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D012119:Respiration; D012129:Respiratory Function Tests; D013147:Spirometry; D013909:Thorax / Q000503:physiopathology*