Exercise-induced bronchospasm prevalence in collegiate cross-country runners

The purpose of this study was to determine the prevalence of exercise-induced bronchospasm (EIB) in collegiate cross-country runners using a protocol involving an intense exercise challenge conducted in the same environment in which the athletes train and compete. One-hundred eighteen collegiate cro...

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Bibliographic Details
Published in:	Medicine and science in sports and exercise Vol. 33; no. 10; pp. 1641 - 1646
Main Authors:	TUCKER THOLE, Robert, SALLIS, Robert E, RUBIN, Aaron L, SMITH, Gary N
Format:	Journal Article
Language:	English
Published:	Hagerstown, MD Lippincott Williams & Wilkins 01-10-2001
Subjects:	Adolescent Adult Asthma, Exercise-Induced - drug therapy Asthma, Exercise-Induced - epidemiology Asthma, Exercise-Induced - physiopathology Biological and medical sciences California - epidemiology Chronic obstructive pulmonary disease, asthma Environment Exercise - physiology Exercise Test Female Heart Rate - physiology Humans Male Medical sciences Peak Expiratory Flow Rate - physiology Pneumology Running - physiology Space life sciences Students Surveys and Questionnaires California Human Competition Spirometry Prevalence Respiratory disease Athlete Running locomotion Sports medicine Asthma Bronchospasm Sport Adolescent Exercise tolerance test Obstructive pulmonary disease
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Summary:	The purpose of this study was to determine the prevalence of exercise-induced bronchospasm (EIB) in collegiate cross-country runners using a protocol involving an intense exercise challenge conducted in the same environment in which the athletes train and compete. One-hundred eighteen collegiate cross-country runners from the Los Angeles, California, metropolitan area participated in the study. All testing took place on a track at the time and location of a normal practice session. The baseline peak expiratory flow rate (PEFR) measurements (best of three) and preexercise heart rate were recorded, after which the athletes ran 2000 m on a track at 85% of maximum heart rate. The postexercise heart rate was recorded and then PEFR measurements at 2, 5, 10, and 30 min after exercise were recorded. The athletes completed a 16-item questionnaire regarding asthma symptoms and health history. Those athletes with a history of asthma and currently taking medications for the asthma were then excluded from statistical analysis of the questionnaire responses. A decrease in PEFR of 15% was considered positive for EIB. Of the 114 athletes not currently taking medications for asthma, at least 14% (16 athletes) were EIB positive. There was a poor correlation between reported symptoms of asthma and testing positive for EIB. This study demonstrates a high prevalence of EIB in collegiate cross-country runners (at least 14%) and that reported symptoms are a poor predictor of actual EIB.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0195-9131 1530-0315
DOI:	10.1097/00005768-200110000-00005