[Reliability of measurements of maximal static respiratory pressure].
The variability and reproducibility of maximal static respiratory pressure measurements was evaluated in 22 healthy subjects and 17 patients with chronic respiratory disease. The difference between consecutive measurements represented 4 to 8 per cent of the result in healthy subjects and 10 to 11 per cent in patients. The difference between the first and the second measurement was not significant and the two values were highly correlated. At 1 to 3 days interval, the results may differ by 10 to 15 per cent in healthy subjects and 20 to 22 per cent in patients. These differences tend to be greater for expiratory (as compared to inspiratory) pressures and for females (as compared to males). A preliminary assessment of the variability and reproducibility of maximal respiratory pressures is compulsory for a valid interpretation of their change in clinical studies.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008168:Lung / Q000502:physiology*; D008173:Lung Diseases, Obstructive / Q000503:physiopathology; D008297:Male; D008451:Maximal Voluntary Ventilation; D008875:Middle Aged; D011658:Pulmonary Fibrosis / Q000503:physiopathology; D012123:Pulmonary Ventilation; D012016:Reference Values; D012129:Respiratory Function Tests
Fiabilité des mesures de pression respiratoire statique maximale.