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The pulmonary and autonomic effects of high-intensity and low-intensity exercise in diesel exhaust Giles, Luisa V.; Carlsten, Christopher Russell; Koehle, Michael

Abstract

Background: Exposure to air pollution impairs aspects of pulmonary and autonomic function and causes pulmonary inflammation. However, how exercising in air pollution affects these indices is poorly understood. Therefore, the purpose of this study was to determine the effects of low-intensity and high-intensity cycling with diesel exhaust (DE) exposure on pulmonary function, heart rate variability (HRV), fraction of exhaled nitric oxide (FeNO), norepinephrine and symptoms. Methods: Eighteen males performed 30-min trials of low-intensity or high-intensity cycling (30 and 60% of power at VO2peak) or a resting control condition. For each subject, each trial was performed once breathing filtered air (FA) and once breathing DE (300μg/m3 of PM2.5, six trials in total). Pulmonary function, FeNO, HRV, norepinephrine and symptoms were measured prior to, immediately post, 1 h and 2 h post-exposure. Data were analyzed using repeated-measures ANOVA. Results: Throat and chest symptoms were significantly greater immediately following DE exposure than following FA (p 

Item Metadata

Title
The pulmonary and autonomic effects of high-intensity and low-intensity exercise in diesel exhaust
Creator
Giles, Luisa V.; Carlsten, Christopher Russell; Koehle, Michael
Contributor
Institute for Heart Lung Health
Publisher
BioMed Central
Date Issued
2018-12-13
Description
Background: Exposure to air pollution impairs aspects of pulmonary and autonomic function and causes pulmonary inflammation. However, how exercising in air pollution affects these indices is poorly understood. Therefore, the purpose of this study was to determine the effects of low-intensity and high-intensity cycling with diesel exhaust (DE) exposure on pulmonary function, heart rate variability (HRV), fraction of exhaled nitric oxide (FeNO), norepinephrine and symptoms. Methods: Eighteen males performed 30-min trials of low-intensity or high-intensity cycling (30 and 60% of power at VO2peak) or a resting control condition. For each subject, each trial was performed once breathing filtered air (FA) and once breathing DE (300μg/m3 of PM2.5, six trials in total). Pulmonary function, FeNO, HRV, norepinephrine and symptoms were measured prior to, immediately post, 1 h and 2 h post-exposure. Data were analyzed using repeated-measures ANOVA. Results: Throat and chest symptoms were significantly greater immediately following DE exposure than following FA (p 
Subject
Air pollution; Exercise; Pulmonary function; FeNO; Norepinephrine; Exercise intensity
Genre
Article
Type
Text
Language
eng
Date Available
2018-12-17
Provider
Vancouver : University of British Columbia Library
Rights
Attribution 4.0 International (CC BY 4.0)
DOI
10.14288/1.0375756
URI
http://hdl.handle.net/2429/68071
Affiliation
Education, Faculty of; Medicine, Faculty of; Other UBC; Non UBC; Kinesiology, School of; Medicine, Department of; Population and Public Health (SPPH), School of
Citation
Environmental Health. 2018 Dec 13;17(1):87
Publisher DOI
10.1186/s12940-018-0434-6
Peer Review Status
Reviewed
Scholarly Level
Faculty
Copyright Holder
The Author(s).
Rights URI
http://creativecommons.org/licenses/by/4.0/
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Attribution 4.0 International (CC BY 4.0)