Maximal inspiratory and expiratory mouth pressures in sitting and half-lying positions in normal subjects.

Abstract:

:Maximal inspiratory (PImax) and expiratory (PEmax) mouth pressures were measured in seven normal adults in both sitting and half-lying positions on 2 days. Analysis of variance did not reveal significant differences between measurements made in the two positions for either PImax or PEmax. Measurements were repeatable and the results obtained in both positions were pooled. The coefficient of variation of PImax was 4.7% between-trials and 10.3% between-days, and those for PEmax were 3.4% and 4.4%, respectively. It is suggested that measurements of PImax and PEmax made in the half-lying position after thoracic surgery can be compared to pre-operative values which are commonly obtained in sitting without any influence from a positional effect. Details of the methodology to improve the reliability of the respiratory mouth pressures technique are discussed.

journal_name

Respir Med

journal_title

Respiratory medicine

authors

Ng GY,Stokes MJ

doi

10.1016/s0954-6111(06)80081-8

subject

Has Abstract

pub_date

1991-05-01 00:00:00

pages

209-11

issue

3

eissn

0954-6111

issn

1532-3064

pii

S0954-6111(06)80081-8

journal_volume

85

pub_type

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