Asthma and asthma medication are common among recreational athletes participating in endurance sport competitions

Asthma prevalence is high among elite endurance athletes, but little is known about its prevalence among competitive recreational athletes. The aim of this study was to determine the prevalence of self-reported asthma and asthma medication use among competitive recreational endurance athletes, and their association with training. A web survey on asthma and medication was conducted among 38,603 adult participants of three Swedish endurance competitions (cross-country running, cross-country skiing, and swimming). Purpose: The aim of this cross-sectional study was to determine the prevalence among competitive recreational endurance athletes of self-reported physician-diagnosed asthma and asthma medication use and their association with training.