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Standardization of the severity of exercise‐induced bronchospasm in Japanese children with asthma:‐ A report of the Committee on Standardization of EIB, Japanese Society of Pediatric Allergy‐
Author(s) -
Nishima Sankei,
Akasaka Tohru,
Arai Yasuo,
Likura Yoji,
Shinomiya Keisuke,
Teramichi Yoshiaki,
Torii Shinpei,
Mikawa Haruki
Publication year - 1983
Publication title -
pediatrics international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.49
H-Index - 63
eISSN - 1442-200X
pISSN - 1328-8067
DOI - 10.1111/j.1442-200x.1983.tb01693.x
Subject(s) - medicine , bronchospasm , asthma , incidence (geometry) , treadmill , physical therapy , exercise induced asthma , physics , optics
The correlation between the severity of asthmatic symptoms and of EIB (exercise‐induced bronchospasm) was studied by changes in PEFR (peak expiratory flow rate). This was accomplished by bicycle ergometer exercise of 12.6 kpm/kg of body weight for 6 minutes, or by treadmill exercise of 6km/h, 10% incline for 6 minutes, by children with bronchial asthma in 7 institutions in Japan (both inpatients and outpatients). The incidence of EIB in those using bicycle ergometers was 63.7%, and the clinical severity paralleled the EIB severity closely, showing complete agreement in 71% and almost complete agreement in 94%. The severity of EIB was as follows: no EIB in less than 15%, mild EIB in15–20%, moderate EIB in 21 ‐45%, and severe EIB in over 45%. The incidence of EIB in those using the treadmill was 65.2% and did not correlate as well as with the clinical severity as in those using the bicycle ergometer. The maximum % fall in PEFR of those judged to be EIB positive using the treadmill was more than 25%. We recommend the use of the bicycle ergometer to determine the severity of bronchial asthma in children.