Inter-session reproducibility of peak expiratory flow with standardized expiratory maneuvers

Summary Background In adults performing forceful expiratory maneuvers, the length of post-inspiratory pause prior to forced expiration may influence the subsequently measured peak expiratory flow (PEF) and increase its variability. We investigated the effects of two different lengths of breath-hold...

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Bibliographic Details
Published in:Respiratory medicine 2007-05, Vol.101 (5), p.933-937
Main Authors: Mandros, Charalampos, Tsiakalos, Aris, Tzelepis, George E
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Female
Forced Expiratory Volume
Humans
Male
Medical sciences
Peak expiratory flow
Peak Expiratory Flow Rate
Pneumology
Pulmonary function testing
Pulmonary/Respiratory
Reproducibility of Results
Respiratory Function Tests - methods
Spirometry
Spirometry - methods
Total Lung Capacity
Vital Capacity
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Summary:Summary Background In adults performing forceful expiratory maneuvers, the length of post-inspiratory pause prior to forced expiration may influence the subsequently measured peak expiratory flow (PEF) and increase its variability. We investigated the effects of two different lengths of breath-hold at total lung capacity (TLC) on the short-term reproducibility of PEF in healthy volunteers. Methods Forty-six healthy volunteers (age 34.6±8.5; 23 men) performed a series of maximal forceful expirations in two different test sessions, separated by approximately 2 weeks. In each test-session, PEF was measured with two different types of maneuvers. One maneuver (P) included a brief (
ISSN:0954-6111
1532-3064
DOI:10.1016/j.rmed.2006.09.014