Regular inhaled corticosteroids reduce exercise-induced asthma

Clinical question: 
Are inhaled corticosteroids effective in exercise-induced asthma?
Bottom line: 
Compared to placebo, inhaled corticosteroids used regularly for 4 weeks or more before exercise testing significantly attenuated exercise-induced bronchoconstriction in both children and adults.
Caveat: 
The relative benefits of inhaled corticosteroids compared to other forms of exercise-induced bronchoconstriction treatment (sodium cromoglycate, nedocromil sodium, salbutamol, and other anti-inflammatory agents) remain unclear. Review involved only 6 studies with numbers of participants ranging from 9 to 40.
Context: 
Exercise induced asthma can limit a person’s exercise endurance and lead to people avoiding exercise. Depending on study population, exercise protocol, detection method and exercise conditions, prevalence of exercise-induced asthma ranges from 10 to 50%.
Review CD#: 
CD002739
PEARLS No: 
46
Date: 
September, 2007
Authored by: 
Brian R McAvoy