[Maximal respiratory pressure: normal values and changes in chronic obstructive pulmonary disease (COPD)].
The measurement of maximal inspiratory and expiratory pressures generated at the mouth (PImax and PEmax)respectively is an accepted noninvasive clinical method for evaluating the strength of respiratory muscles, however at present the normal values have been not unified. We measured PImax and PEmax in 50 healthy subjects and 50 patients with stable chronic obstructive pulmonary disease (COPD). The results showed that our normal values of PImax and PEmax approximated to the lower end of the ranges of normal values in healthy subjects and the PImax and PEmax of patients with moderate reported in foreign countries COPD were lower than healthy subjects.
Liu
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D000368:Aged; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012119:Respiration / Q000502:physiology*; D012129:Respiratory Function Tests