Ventilatory monitoring devices that require mouthpiece breathing produce a rise in tidal volume (VT), a fall in frequency(f) and alterations in periodicity and variability of breathing components. Together with the introduction of the respiratory inductive plethysmograph, a reliable noninvasive monitoring device of ventilation, major advances have taken place in understanding the significance of the components of the breathing pattern.
We measured the breathing pattern of normal subjects utilizing respiratory inductive plethysmography and continuously processed these data with a microprocessor system. The mean values of the breathing pattern components in normal subjects were not affected by age, but the rhythmicity was more irregular in the elderly. The values of breathing pattern components obtained noninvasively by respiratory inductive plethysmography in normal subjects are fairly predictable in limits similar to other tests of pulmonary function.
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Escrito por André De Troyer1,2 and Theodore A. Wilson3
Escrito por Alana Bortolan Sacon1 Ana Paula Pillatt2 Laura Wuttig Berbam3 Vanessa Zardin Fengler4 Darlene Costa de Bittencourt5 Adriane Schmidt Pasqualoto6
Escrito por Débora Machado Lopes², Débora Cristina dos Santos², Vívian Dapieve Antunes3 e Juliana Saibt Martins Pasin4
