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.
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.
Authors: Renata N Teixeira; Felipe Ar Mendes; Milton A Martins; Timothy D Mickleborough; Celso Rf Carvalho Journal: World Allergy Organ J Date: 2014-04-03 Impact factor: 4.084
Authors: Aline F Brito; Alexandre S Silva; Iara L L Souza; Joedna C Pereira; Italo R R Martins; Bagnólia A Silva Journal: J Smooth Muscle Res Date: 2015
Authors: Juliana de Melo Batista Dos Santos; André Luis Lacerda Bachi; Luiz Antonio Luna Junior; Roberta Foster; Ana Paula Renno Sierra; Marino Benetti; José Roberto Araújo; Nabil Ghorayeb; Maria Augusta Peduti Dal'Molim Kiss; Rodolfo P Vieira; Dominique M A Bullens; Mauro Vaisberg Journal: Int J Environ Res Public Health Date: 2020-04-11 Impact factor: 3.390