Acute reduction in spirometry values after prolonged exercise among recreational runners

Gerald S. Zavorsky, Ralph D. Zimmerman, Derek Shendell, Lynda T. Goodfellow

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Prolonged endurance running may acutely reduce spirometric lung values. This study examined changes in spirometry before and immediately after prolonged endurance exercise (running and/or walking). Specifically, we examined potential factors that predict the presence of at least a 10% postexercise reduction in FEV1. METHODS: After institutional review board approval, recruitment occurred at a pre-race exposition, where informed consent was obtained. Pre-and post-race spirometry measurements were taken from 79 study subjects who competed in a half-marathon (n = 66) or a marathon (n = 13). Spirometry was performed 1–2 days before the marathon or half-marathon and 25 min after finish the race. RESULTS: We identified a subgroup of 23 subjects with a postexercise decrease in FEV1 of ≥10%. In this subgroup, the mean post-race values for FEV1, FVC, and peak expiratory flow were 19–24% lower than the pre-race values. In the 56 subjects with a change in FEV1 of <10%, the mean post-race changes in spirometry values were not >6%. There was no difference between the 2 groups in sex distribution or between subjects who completed the half-marathon or the full marathon. For every 1-y increase in age, the likelihood of developing a postexercise reduction in FEV1 of at least 10% decreased by nearly 10% (R2 = 0.15, P =.003). CONCLUSIONS: Exercise-induced bronchoconstriction (EIB) is the most probable explanation for the reduction in post-race FEV1. Prolonged endurance exercise reduced spirometric lung function by ~20% in those with EIB. Age was the only predictor for EIB, and EIB did not affect the finish times among recreational runners and/or walkers.

Original languageEnglish (US)
Pages (from-to)26-33
Number of pages8
JournalRespiratory care
Volume64
Issue number1
DOIs
StatePublished - Jan 1 2019

Fingerprint

Spirometry
Bronchoconstriction
Exercise
Running
Walkers
Lung
Sex Distribution
Research Ethics Committees
Informed Consent
Walking

All Science Journal Classification (ASJC) codes

  • Critical Care and Intensive Care Medicine
  • Pulmonary and Respiratory Medicine

Cite this

Zavorsky, Gerald S. ; Zimmerman, Ralph D. ; Shendell, Derek ; Goodfellow, Lynda T. / Acute reduction in spirometry values after prolonged exercise among recreational runners. In: Respiratory care. 2019 ; Vol. 64, No. 1. pp. 26-33.
@article{6c4a5f926d324da883554c635f0eea1e,
title = "Acute reduction in spirometry values after prolonged exercise among recreational runners",
abstract = "BACKGROUND: Prolonged endurance running may acutely reduce spirometric lung values. This study examined changes in spirometry before and immediately after prolonged endurance exercise (running and/or walking). Specifically, we examined potential factors that predict the presence of at least a 10{\%} postexercise reduction in FEV1. METHODS: After institutional review board approval, recruitment occurred at a pre-race exposition, where informed consent was obtained. Pre-and post-race spirometry measurements were taken from 79 study subjects who competed in a half-marathon (n = 66) or a marathon (n = 13). Spirometry was performed 1–2 days before the marathon or half-marathon and 25 min after finish the race. RESULTS: We identified a subgroup of 23 subjects with a postexercise decrease in FEV1 of ≥10{\%}. In this subgroup, the mean post-race values for FEV1, FVC, and peak expiratory flow were 19–24{\%} lower than the pre-race values. In the 56 subjects with a change in FEV1 of <10{\%}, the mean post-race changes in spirometry values were not >6{\%}. There was no difference between the 2 groups in sex distribution or between subjects who completed the half-marathon or the full marathon. For every 1-y increase in age, the likelihood of developing a postexercise reduction in FEV1 of at least 10{\%} decreased by nearly 10{\%} (R2 = 0.15, P =.003). CONCLUSIONS: Exercise-induced bronchoconstriction (EIB) is the most probable explanation for the reduction in post-race FEV1. Prolonged endurance exercise reduced spirometric lung function by ~20{\%} in those with EIB. Age was the only predictor for EIB, and EIB did not affect the finish times among recreational runners and/or walkers.",
author = "Zavorsky, {Gerald S.} and Zimmerman, {Ralph D.} and Derek Shendell and Goodfellow, {Lynda T.}",
year = "2019",
month = "1",
day = "1",
doi = "https://doi.org/10.4187/respcare.05881",
language = "English (US)",
volume = "64",
pages = "26--33",
journal = "Respiratory Care",
issn = "0020-1324",
publisher = "Daedalus Enterprises Inc.",
number = "1",

}

Acute reduction in spirometry values after prolonged exercise among recreational runners. / Zavorsky, Gerald S.; Zimmerman, Ralph D.; Shendell, Derek; Goodfellow, Lynda T.

In: Respiratory care, Vol. 64, No. 1, 01.01.2019, p. 26-33.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Acute reduction in spirometry values after prolonged exercise among recreational runners

AU - Zavorsky, Gerald S.

AU - Zimmerman, Ralph D.

AU - Shendell, Derek

AU - Goodfellow, Lynda T.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - BACKGROUND: Prolonged endurance running may acutely reduce spirometric lung values. This study examined changes in spirometry before and immediately after prolonged endurance exercise (running and/or walking). Specifically, we examined potential factors that predict the presence of at least a 10% postexercise reduction in FEV1. METHODS: After institutional review board approval, recruitment occurred at a pre-race exposition, where informed consent was obtained. Pre-and post-race spirometry measurements were taken from 79 study subjects who competed in a half-marathon (n = 66) or a marathon (n = 13). Spirometry was performed 1–2 days before the marathon or half-marathon and 25 min after finish the race. RESULTS: We identified a subgroup of 23 subjects with a postexercise decrease in FEV1 of ≥10%. In this subgroup, the mean post-race values for FEV1, FVC, and peak expiratory flow were 19–24% lower than the pre-race values. In the 56 subjects with a change in FEV1 of <10%, the mean post-race changes in spirometry values were not >6%. There was no difference between the 2 groups in sex distribution or between subjects who completed the half-marathon or the full marathon. For every 1-y increase in age, the likelihood of developing a postexercise reduction in FEV1 of at least 10% decreased by nearly 10% (R2 = 0.15, P =.003). CONCLUSIONS: Exercise-induced bronchoconstriction (EIB) is the most probable explanation for the reduction in post-race FEV1. Prolonged endurance exercise reduced spirometric lung function by ~20% in those with EIB. Age was the only predictor for EIB, and EIB did not affect the finish times among recreational runners and/or walkers.

AB - BACKGROUND: Prolonged endurance running may acutely reduce spirometric lung values. This study examined changes in spirometry before and immediately after prolonged endurance exercise (running and/or walking). Specifically, we examined potential factors that predict the presence of at least a 10% postexercise reduction in FEV1. METHODS: After institutional review board approval, recruitment occurred at a pre-race exposition, where informed consent was obtained. Pre-and post-race spirometry measurements were taken from 79 study subjects who competed in a half-marathon (n = 66) or a marathon (n = 13). Spirometry was performed 1–2 days before the marathon or half-marathon and 25 min after finish the race. RESULTS: We identified a subgroup of 23 subjects with a postexercise decrease in FEV1 of ≥10%. In this subgroup, the mean post-race values for FEV1, FVC, and peak expiratory flow were 19–24% lower than the pre-race values. In the 56 subjects with a change in FEV1 of <10%, the mean post-race changes in spirometry values were not >6%. There was no difference between the 2 groups in sex distribution or between subjects who completed the half-marathon or the full marathon. For every 1-y increase in age, the likelihood of developing a postexercise reduction in FEV1 of at least 10% decreased by nearly 10% (R2 = 0.15, P =.003). CONCLUSIONS: Exercise-induced bronchoconstriction (EIB) is the most probable explanation for the reduction in post-race FEV1. Prolonged endurance exercise reduced spirometric lung function by ~20% in those with EIB. Age was the only predictor for EIB, and EIB did not affect the finish times among recreational runners and/or walkers.

UR - http://www.scopus.com/inward/record.url?scp=85058922446&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058922446&partnerID=8YFLogxK

U2 - https://doi.org/10.4187/respcare.05881

DO - https://doi.org/10.4187/respcare.05881

M3 - Article

VL - 64

SP - 26

EP - 33

JO - Respiratory Care

JF - Respiratory Care

SN - 0020-1324

IS - 1

ER -