Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Exercise-induced bronchoconstriction in elite long-distance runners in Brazil

Broncoespasmo induzido por exercício em corredores brasileiros de longa distância de elite

Renata Nakata Teixeira, Luzimar Raimundo Teixeira, Luiz Augusto Riani Costa, Milton Arruda Martins, Timothy Derick Mickleborough, Celso Ricardo Fernandes Carvalho

J Bras Pneumol.2012;38(3):292-298

Abstract PDF PT PDF EN Portuguese Text

Objective: To determine the prevalence of exercise-induced bronchoconstriction among elite long-distance runners in Brazil and whether there is a difference in the training loads among athletes with and without exercise-induced bronchoconstriction. Methods: This was a cross-sectional study involving elite long-distance runners with neither current asthma symptoms nor a diagnosis of exercise-induced bronchoconstriction. All of the participants underwent eucapnic voluntary hyperpnea challenge and maximal cardiopulmonary exercise tests, as well as completing questionnaires regarding asthma symptoms and physical activity, in order to monitor their weekly training load. Results: Among the 86 male athletes recruited, participation in the study was agreed to by 20, of whom 5 (25%) were subsequently diagnosed with exercise-induced bronchoconstriction. There were no differences between the athletes with and without exercise-induced bronchoconstriction regarding anthropometric characteristics, peak oxygen consumption, baseline pulmonary function values, or reported asthma symptoms. The weekly training load was significantly lower among those with exercise-induced bronchoconstriction than among those without. Conclusions: In this sample of long-distance runners in Brazil, the prevalence of exercise-induced bronchoconstriction was high.

 


Keywords: Athletes; Asthma, exercise-induced; Exercise test.

 


 

 


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