Skip to main content

Diagnosis of exercise-induced bronchoconstriction: eucapnic voluntary hyperpnoea challenges identify previously undiagnosed elite athletes with exercise-induced bronchoconstriction

Dickinson, John W., McConnell, Alison, Whyte, Greg (2010) Diagnosis of exercise-induced bronchoconstriction: eucapnic voluntary hyperpnoea challenges identify previously undiagnosed elite athletes with exercise-induced bronchoconstriction. British Journal of Sports Medicine, 45 (14). pp. 1126-1131. ISSN 0306-3674. E-ISSN 1476-0480. (doi:10.1136/bjsm.2010.072520) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:43901)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1136/bjsm.2010.072520

Abstract

BACKGROUND

There is increasing evidence to suggest many elite athletes fail to recognise and report symptoms of exercise-induced bronchoconstriction (EIB), supporting the contention that athletes should be screened routinely for EIB.

PURPOSE

To screen elite British athletes for EIB using eucapnic voluntary hyperpnoea (EVH).

METHODS

228 elite athletes provided written informed consent and completed an EVH challenge with maximal flow volume loops measured at baseline and 3, 5, 10 and 15 min following EVH. A fall of 10% in forced expiratory volume in 1 s (FEV(1)) from baseline was deemed positive. Two-way analysis of variance was conducted to compare FEV(1) at baseline and maximal change following EVH between EVH-positive and EVH-negative athletes who did and did not report a previous diagnosis of EIB. Significance was assumed if p ?0.05.

RESULTS

Following the EVH challenge 78 athletes (34%) demonstrated EVH positive. 57 out of the 78 (73%) athletes who demonstrated EVH positive did not have a previous diagnosis of EIB. 30 athletes reported a previous diagnosis of asthma, nine (30%) of whom demonstrated EVH negative. There was no significant difference between the magnitude of the fall in FEV(1) between athletes who reported a previous diagnosis of EIB and demonstrated EVH positive, and those with no previous diagnosis of EIB who demonstrated EVH positive (mean±SD; -21.6 ± 16.1% vs -17.1 ± 9.7%; p=0.07).

CONCLUSION

The high proportion of previously undiagnosed athletes who demonstrated EVH positive suggests that elite athletes should be screened routinely for EIB using a suitable bronchoprovocation challenge.

Item Type: Article
DOI/Identification number: 10.1136/bjsm.2010.072520
Subjects: R Medicine > RC Internal medicine > RC1200 Sports medicine
Divisions: Divisions > Division of Natural Sciences > School of Sport and Exercise Sciences
Depositing User: John Dickinson
Date Deposited: 27 Nov 2014 12:44 UTC
Last Modified: 16 Feb 2021 12:56 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/43901 (The current URI for this page, for reference purposes)
Dickinson, John W.: https://orcid.org/0000-0002-1824-7402
  • Depositors only (login required):