Effect of exercise-induced bronchoconstriction on the configuration of the maximal expiratory flow-volume curve in adults with asthma.

Adult Humans Asthma / etiology Bronchoconstriction / physiology Exercise / adverse effects Exhalation Forced Expiratory Volume Maximal Expiratory Flow-Volume Curves / physiology Asthma, Exercise-Induced / physiopathology
asthma bronchoconstriction exercise flow-volume curve maximal expiration

Journal

Physiological reports
ISSN: 2051-817X
Titre abrégé: Physiol Rep
Pays: United States
ID NLM: 101607800

Informations de publication

Date de publication:
02 2023
Historique:
received: 21 12 2022
accepted: 28 01 2023
pubmed: 25 2 2023
medline: 3 3 2023
entrez: 24 2 2023
Statut: ppublish

Résumé

We determined the effect of exercise-induced bronchoconstriction (EIB) on the shape of the maximal expiratory flow-volume (MEFV) curve in asthmatic adults. The slope-ratio index (SR) was used to quantitate the shape of the MEFV curve. We hypothesized that EIB would be accompanied by increases in SR and thus increased curvilinearity of the MEFV curve. Adult asthmatic ( n  = 10) and non-asthmatic control subjects ( n  = 9) cycled for 6-8 min at 85% of peak power. Following exercise, subjects remained on the ergometer and performed a maximal forced exhalation every 2 min for a total 20 min. In each MEFV curve, the slope-ratio index (SR) was calculated in 1% volume increments beginning at peak expiratory flow (PEF) and ending at 20% of forced vital capacity (FVC). Baseline spirometry was lower in asthmatics compared to control subjects (FEV

Identifiants

DOI: 10.14814/phy2.15614 PMID: 36823958 PMC: PMC9950550
pubmed: 36823958
doi: 10.14814/phy2.15614
pmc: PMC9950550
doi:

Types de publication

Journal Article Research Support, N.I.H., Extramural

Langues

eng

Sous-ensembles de citation

IM

Pagination

e15614

Subventions

Organisme : NIGMS NIH HHS
ID : P20 GM103449
Pays : United States

Informations de copyright

© 2023 The Authors. Physiological Reports published by Wiley Periodicals LLC on behalf of The Physiological Society and the American Physiological Society.

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Auteurs

Oksana Klimenko (O)

Department of Nutrition and Exercise Physiology, Washington State University-Spokane Health Sciences, Elson S. Floyd College of Medicine, Spokane, Washington, USA.

Peter Luu (P)

Department of Nutrition and Exercise Physiology, Washington State University-Spokane Health Sciences, Elson S. Floyd College of Medicine, Spokane, Washington, USA.

Paolo Dominelli (P)

Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada.

Nathan Noggle (N)

Department of Nutrition and Exercise Physiology, Washington State University-Spokane Health Sciences, Elson S. Floyd College of Medicine, Spokane, Washington, USA.

Gregory Petrics (G)

Department of Mathematics, Northern Vermont University-Johnson, Johnson, Vermont, USA.

Hans Christian Haverkamp (HC)

Department of Nutrition and Exercise Physiology, Washington State University-Spokane Health Sciences, Elson S. Floyd College of Medicine, Spokane, Washington, USA.
ORCID: 0000-0001-8207-318X

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Classifications MeSH

questionsmedicales.fr › Personnes › Tranches d'âge › Adulte › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Mammifères › Eutheria › Primates › Haplorhini › Catarrhini › Hominidae › Humains › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Maladies du système immunitaire › Hypersensibilité › Hypersensibilité immédiate › Hypersensibilité respiratoire › Asthme › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Phénomènes physiologiques respiratoires et circulatoires › Phénomènes physiologiques respiratoires › Respiration › Mécanique respiratoire › Bronchoconstriction › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Activités humaines › Exercice physique › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Phénomènes physiologiques respiratoires et circulatoires › Phénomènes physiologiques respiratoires › Respiration › Mécanique respiratoire › Expiration › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Phénomènes physiologiques respiratoires et circulatoires › Phénomènes physiologiques respiratoires › Ventilation pulmonaire › Volume expiratoire maximal par seconde › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Phénomènes physiologiques respiratoires et circulatoires › Phénomènes physiologiques respiratoires › Ventilation pulmonaire › Débits expiratoires forcés › Courbes débit-volume maximales expiratoires › Effect of exercise-induced bronchoconstriction...
questionsmedicales.fr › Maladies du système immunitaire › Hypersensibilité › Hypersensibilité immédiate › Hypersensibilité respiratoire › Asthme › Asthme à l'effort › Effect of exercise-induced bronchoconstriction...