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Chest, Vol 97, 313-314, Copyright © 1990 by American College of Chest Physicians

ARTICLES

Postural variation of the maximum inspiratory and expiratory pressures in normal subjects

JA Fiz, A Texido, J Izquierdo, J Ruiz, J Roig and J Morera
Servei de Pneumologia, Hospital Germans Trias i Pujol, Barcelona, Spain.

The maximum static inspiratory and expiratory pressures (MIP and MEP, respectively) were measured in 15 normal male subjects (average age, 27.14 years) in standing and sitting position. The MIP was determined at RV and FRC and MEP was determined at TLC and FRC. No significant differences were found for these parameters between the two postures. Our study proves that the posture adopted by the subject when these two maneuvers are performed does not influence the results obtained.




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Copyright © 1990 by the American College of Chest Physicians.