title: Prevalence of exercise-induced bronchoconstriction in teenage football players in Tunisia.
abstract: OBJECTIVE
  Studies on exercise-induced bronchoconstriction (EIB) in team sports are lacking. The aim of this study was to screen for EIB among amateur teenage football players in Tunisia and to compare EIB prevalence between regions.
  
  
  METHODS
  One hundred ninety-six male football players (mean age [SD], 13.5 [0.5] yrs), practicing in three different cities of Tunisia (Tunis, Sousse and Sfax), underwent an outdoor free run of 7 minutes. Forced expiratory volume in one second (FEV subset1) was recorded prior to and at 0, 3, 5, 10, 15, 20 and 30 minutes after the run. Players were screened for EIB positivity defined as a greater than 10% decline in FEV subset1 from the resting value at any timepoint.
  
  
  RESULTS
  FEV1 decreased more than 10% in 30% of the players. EIB positivity was more common in Sfax (15.8%) than in Tunis (7.7%) (P=.03). Air humidity during the study was higher in Tunis.
  
  
  CONCLUSIONS
  EIB is prevalent among amateur teenage football players in Tunisia. The prevalence differs between regions and seems to be dependent on air humidity levels.
authors: Department of Respiratory Diseases III, Abderrahman-Mami Hospital, ahmedhassan@kfshrc.edu.sa Ariana, Manouba, Tunisia. imen.aissa@rns.tn
authors: Imen
authors: I
authors: Aissa
authors: Amine
authors: A
authors: Frikha
authors: Habib
authors: H
authors: Ghedira
mesh_terms: D000293:Adolescent; D016084:Bronchoconstriction; D015444:Exercise; D005538:Football; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D015995:Prevalence; D014416:Tunisia