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  • Title: Exercise induced bronchoconstriction in Nigerian asthmatics.
    Author: Erhabor GE, Awotedu AA, Balogun MO.
    Journal: Afr J Med Med Sci; 1993 Jun; 22(2):33-7. PubMed ID: 7839894.
    Abstract:
    This study describes the result of free-running exercise performed on 40 asthmatic subjects and 40 age and sex matched controls. A percentage fall of more than 15% in PEFR was used for the diagnosis of exercise-induced asthma (EIA). 77.5% of our asthmatic patients had exercise-induced bronchoconstriction (EIB) while none of the control subjects exhibited EIB. Twenty-seven patients gave positive history of EIA out of which 25 (92.59%) had positive exercise testing. Conversely, 13 patients with asthma did not give history of EIA but 6 of this (46.15%) were found to have EIB on exercise. History alone is therefore insufficient to diagnose patients with exercise-induced asthma.
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