Exercise-induced bronchoconstriction in university field hockey athletes: prevalence, sex differences, and associations with dyspnea symptoms

Needham, R.S., Sharpe, G.R. ORCID: 0000-0002-4575-2332, Williams, N.C. ORCID: 0000-0002-2607-4572, Lester, P.A. ORCID: 0000-0002-8971-7504 and Johnson, M.A. ORCID: 0000-0002-8226-9438, 2022. Exercise-induced bronchoconstriction in university field hockey athletes: prevalence, sex differences, and associations with dyspnea symptoms. Frontiers in Allergy, 3: 994947. ISSN 2673-6101

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Introduction: Exercise-induced bronchoconstriction (EIB) is a prevalent condition in athletes. EIB screening studies identify many athletes with undiagnosed EIB. Moreover, there is a poor relationship between EIB and dyspnea symptoms recalled from memory.

Purpose: This study investigated: (I) the prevalence of EIB in British university field hockey athletes; (II) the effect of sex and diagnostic criteria on EIB prevalence; and (III) the association between EIB and contemporaneous dyspnea symptoms.

Methods: 52 field hockey athletes (age: 20 ± 2 years; height: 173 ± 9 cm; body mass: 72 ± 10 kg; male = 31; female = 22) completed a eucapnic voluntary hyperpnea (EVH) test with multi-dimensional dyspnea scores measured 3–10 mins post-EVH. A test was deemed positive (EIB+) if a fall index (FI) ≥10% in FEV1 occurred at two consecutive time points post-test (FIATS). Two further criteria were used to assess the effect of diagnostic criteria on prevalence: FI≥10%, determined by a pre-to-post-EVH fall in FEV1 of ≥10% at any single time-point; and FI≥10%−NORM calculated as FI≥10% but with the fall in FEV1 normalized to the mean ventilation achieved during EVH.

Results: EIB prevalence was 19% and greater in males (30%) than females (5%). In EIB+ athletes, 66% did not have a previous diagnosis of EIB or asthma and were untreated. Prevalence was significantly influenced by diagnostic criteria (P = 0.002) ranging from 19% (FIATS) to 38% (FI≥10%−NORM). Dyspnea symptoms were higher in EIB+ athletes (P ≤ 0.031), produced significant area under the curve for receive operator characteristics (AUC ≥ 0.778, P ≤ 0.011) and had high negative prediction values (≥96%).

Conclusion: Overall, 19% of university field hockey athletes had EIB, and most were previously undiagnosed and untreated. EVH test diagnostic criteria significantly influences prevalence rates, thus future studies should adopt the ATS criteria (FIATS). Contemporaneous dyspnea symptoms were associated with bronchoconstriction and had high negative prediction values. Therefore, contemporaneous dyspnea scores may provide a useful tool in excluding a diagnosis of EIB.

Item Type: Journal article
Publication Title: Frontiers in Allergy
Creators: Needham, R.S., Sharpe, G.R., Williams, N.C., Lester, P.A. and Johnson, M.A.
Publisher: Frontiers Media SA
Date: 2022
Volume: 3
ISSN: 2673-6101
Rights: © 2022 Needham, Sharpe, Williams, Lester and Johnson. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Divisions: Schools > School of Science and Technology
Record created by: Linda Sullivan
Date Added: 30 Nov 2022 08:56
Last Modified: 30 Nov 2022 08:56
URI: https://irep.ntu.ac.uk/id/eprint/47548

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