Document Detail


Are questionnaires on respiratory symptoms reliable predictors of airway hyperresponsiveness in athletes and sedentary subjects?
MedLine Citation:
PMID:  12699214     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study aimed at determining the frequency of respiratory symptoms in high-level athletes and whether respiratory questionnaires are reliable predictors of airway hyperresponsiveness (AHR) in this population compared with control subjects. One hundred high-level athletes exercising in different conditions of ambient air (dry, humid, cold or mixed dry and humid) and 50 sedentary control subjects answered four question sets on exercise-induced symptoms of postnasal drip (Q1), breathlessness, chest tightness and wheezing (Q2), and cough (Q3). Another question set (Q4) evaluated the self-description of nociceptive sensations associated with respiratory symptoms. Methacholine inhalation tests were performed in all subjects to obtain a 20% fall in forced expiratory volume in 1 second (PC20). AHR could be detected by questionnaires in 37 of 44 (84%) subjects with a PC20 < 8 mg/mL. Sensitivity to detect AHR varied between the different subgroups of athletes with each of the question sets; however, no significant differences in sensitivity were observed between the groups of athletes and controls except for Q3 (P=.007), in which athletes exercising in cold air reported more exercise-induced cough. Q2 had a better specificity (83%) than Q3 (77%) and Q4 (64%). Combined question sets revealed that three swimmers, two triathletes, and two controls, who answered negatively to all question sets, had a PC20 < 8 mg/mL. Questionnaires on symptoms and on associated nociceptive sensations may help to detect AHR as well in athletes and controls, although for some subgroups of athletes such as swimmers and triathletes and in some controls, false negative questionnaires can be observed and AHR underreported.
Authors:
Hélène Turcotte; Jean-Bruno Langdeau; Dennis M Bowie; Louis-Philippe Boulet
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of asthma : official journal of the Association for the Care of Asthma     Volume:  40     ISSN:  0277-0903     ISO Abbreviation:  J Asthma     Publication Date:  2003 Feb 
Date Detail:
Created Date:  2003-04-17     Completed Date:  2003-05-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8106454     Medline TA:  J Asthma     Country:  United States    
Other Details:
Languages:  eng     Pagination:  71-80     Citation Subset:  IM    
Affiliation:
Centre de Recherche de l'Hôpital Laval, Institut Universitaire de cardiologie et de pneumologie, Université Laval, Sainte-Foy, Québec, Canada.
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MeSH Terms
Descriptor/Qualifier:
Adult
Asthma, Exercise-Induced / physiopathology*
Bronchial Hyperreactivity / diagnosis*
Bronchial Provocation Tests
Bronchoconstrictor Agents / diagnostic use
Case-Control Studies
Female
Humans
Male
Methacholine Chloride / diagnostic use
Predictive Value of Tests
Questionnaires*
Sensitivity and Specificity
Sports
Temperature
Chemical
Reg. No./Substance:
0/Bronchoconstrictor Agents; 62-51-1/Methacholine Chloride

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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