n International SportMed Journal - Exercise-induced asthma, its treatment and the athlete : review article




The prevalence of exercise-induced bronchospasm among non-asthmatic individuals is around 10-15%. Although most asthmatics are at risk of suffering exercise-induced bronchospasm, depending on the degree of control of their disease and the amount of exercise they perform, there seems to be an independent clinical entity, namely, exercise-induced asthma, in individuals with otherwise normal lung function. Exercise-induced bronchospasm occurs with the release of cell mediators in response to a hyperosmolar environment, secondary to the loss of water produced on the surface of the bronchii, brought about by the need for humidifying the inspired air. Long-acting beta2-agonists are probably the drugs of choice when exercising sporadically. Antileukotrienes are probably a better option for children and athletes exercising several times daily.


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