Screening English Premier League football players for exercise-induced bronchoconstriction
Symptom-based diagnosis of EIB has been shown to have a low level of sensitivity and specificity. Lund et al. (2009) demonstrated that out of 42 symptomatic elite athletes, only 12 could provide objective evidence of asthma. Rundell et al. (2001) showed that only 50% of athletes who had genuine EIB reported any symptoms of EIB. This would suggest that many elite athletes fail to associate respiratory symptoms with EIB, perhaps believing their extreme dyspnoea to be a normal part of intense training/competition. Given the poor sensitivity and specificity of symptoms based diagnosis it is recommended all diagnosis of EIB is accompanied by an indirect airway challenge (Carlsen et al., 2005).