Exercise and large airway issues

Abstract The large airways, extending from the trachea to the main bronchi, respond dynamically to exercise‐induced ventilatory demands. Large airway collapse (LAC) represents a spectrum of conditions characterized by excessive reduction in tracheal and/or main bronchial lumen during expiration. Uti...

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Main Authors: Zander J. Williams, Giovanni Cenerini, James H. Hull
Format: Article
Language:English
Published: Wiley 2025-07-01
Series:Physiological Reports
Subjects:
Online Access:https://doi.org/10.14814/phy2.70454
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author Zander J. Williams
Giovanni Cenerini
James H. Hull
author_facet Zander J. Williams
Giovanni Cenerini
James H. Hull
author_sort Zander J. Williams
collection DOAJ
description Abstract The large airways, extending from the trachea to the main bronchi, respond dynamically to exercise‐induced ventilatory demands. Large airway collapse (LAC) represents a spectrum of conditions characterized by excessive reduction in tracheal and/or main bronchial lumen during expiration. Utilizing the most common diagnostic criteria, defined as ≥50% reduction in airway cross‐sectional area during expiration, LAC is a common finding in around one in three patients with underlying lung disease. However, it is also apparent that healthy, asymptomatic people meet this diagnostic criteria. Despite being recognized as a cause of exertional symptoms, the relationship between LAC and exercise‐related symptoms or limitation is currently poorly understood. Traditional clinical approaches use forced expiratory measurements performed at rest during bronchoscopy or imaging studies to assess the condition. But novel tests, visualizing the large airways during exercise, may provide more physiologically relevant insight and are an important next step towards the development of targeted interventions for this clinical entity. This review aims to examine large airway behavior during different ventilatory challenges, with particular focus on comparing exercise hyperpnea with forced expiratory maneuvers.
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spelling doaj-art-5a0f83b2c0df4afeb9159f0f29df1c382025-08-20T03:50:49ZengWileyPhysiological Reports2051-817X2025-07-011313n/an/a10.14814/phy2.70454Exercise and large airway issuesZander J. Williams0Giovanni Cenerini1James H. Hull2Department of Respiratory Medicine Royal Brompton Hospital London UKDepartment of Surgical, Medical and Molecular Pathology and Critical Care Medicine University of Pisa Pisa ItalyDepartment of Respiratory Medicine Royal Brompton Hospital London UKAbstract The large airways, extending from the trachea to the main bronchi, respond dynamically to exercise‐induced ventilatory demands. Large airway collapse (LAC) represents a spectrum of conditions characterized by excessive reduction in tracheal and/or main bronchial lumen during expiration. Utilizing the most common diagnostic criteria, defined as ≥50% reduction in airway cross‐sectional area during expiration, LAC is a common finding in around one in three patients with underlying lung disease. However, it is also apparent that healthy, asymptomatic people meet this diagnostic criteria. Despite being recognized as a cause of exertional symptoms, the relationship between LAC and exercise‐related symptoms or limitation is currently poorly understood. Traditional clinical approaches use forced expiratory measurements performed at rest during bronchoscopy or imaging studies to assess the condition. But novel tests, visualizing the large airways during exercise, may provide more physiologically relevant insight and are an important next step towards the development of targeted interventions for this clinical entity. This review aims to examine large airway behavior during different ventilatory challenges, with particular focus on comparing exercise hyperpnea with forced expiratory maneuvers.https://doi.org/10.14814/phy2.70454excessive dynamic airway collapseexerciselarge airwaytracheobronchomalacia
spellingShingle Zander J. Williams
Giovanni Cenerini
James H. Hull
Exercise and large airway issues
Physiological Reports
excessive dynamic airway collapse
exercise
large airway
tracheobronchomalacia
title Exercise and large airway issues
title_full Exercise and large airway issues
title_fullStr Exercise and large airway issues
title_full_unstemmed Exercise and large airway issues
title_short Exercise and large airway issues
title_sort exercise and large airway issues
topic excessive dynamic airway collapse
exercise
large airway
tracheobronchomalacia
url https://doi.org/10.14814/phy2.70454
work_keys_str_mv AT zanderjwilliams exerciseandlargeairwayissues
AT giovannicenerini exerciseandlargeairwayissues
AT jameshhull exerciseandlargeairwayissues