1994
DOI: 10.1183/09031936.94.07020398
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Portable measurement of maximum mouth pressures

Abstract: P Po or rt ta ab bl le e m me ea as su ur re em me en nt t o of f m ma ax xi im mu um m m mo ou ut th h p pr re es ss su ur re es s The mouth pressure meter measures and displays as a digital read-out peak pressure for inspiratory and expiratory efforts. It samples the signal at 16 Hz, and an integral microprocessor is programmed to determine and display the maximum pressure averaged over one second both during inspiratory and expiratory manoeuvres (PImax and PEmax, respectively). A fine bore catheter connecti… Show more

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Cited by 96 publications
(65 citation statements)
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“…In 1994, Hamnegard et al 19 evaluated maximal respiratory pressures in healthy individuals and respiratory illness patients. The authors compared the measurements taken with a portable manometer with those obtained with a pressure transducer, considered the gold standard, and did not find significant differences, which attests to the precision and reproducibility of the portable manometer.…”
Section: Methodsmentioning
confidence: 99%
“…In 1994, Hamnegard et al 19 evaluated maximal respiratory pressures in healthy individuals and respiratory illness patients. The authors compared the measurements taken with a portable manometer with those obtained with a pressure transducer, considered the gold standard, and did not find significant differences, which attests to the precision and reproducibility of the portable manometer.…”
Section: Methodsmentioning
confidence: 99%
“…Contrariamente o estudo realizado por Hamenegard et al, 4 apontou inexistência de diferença entre estas medidas, independente das faixas etárias, ao utilizar um instrumento capaz de registrar tanto as pressões de pico quanto as sustentadas. A ideia de que o valor de pico possa prejudicar o diagnóstico precoce de fraqueza muscular não é compartilhada por alguns autores.…”
Section: Discussionunclassified
“…11 Dentro deste grupo de ressalvas, a maioria dos estudos feitos com crianças considera como valor da pressão respiratória máxima o valor de platô, [12][13][14] que se refere ao intervalo de um segundo, imediatamente após o pico de pressão, no qual é exercida a máxima pressão com a menor variabilidade. 3,4 Contudo, o valor platô é consideravelmente menor do que o valor de pico e até mesmo da pressão sustentada de acordo com a curva pressão x tempo 1,3 podendo subestimar os valores reais de força obtidos pelo indivíduo.…”
Section: Introductionunclassified
See 1 more Smart Citation
“…All of the test procedures were conducted according to previous recommendations 27,28 . These measures have shown adequate psychometric properties in previous studies 29,30 .…”
Section: Respiratory Muscular Strengthmentioning
confidence: 99%