Document Detail

Effect of moderate exercise on salivary immunoglobulin A and infection risk in humans.
MedLine Citation:
PMID:  12070626     Owner:  NLM     Status:  MEDLINE    
The incidence of upper respiratory tract infections (URTI) and salivary immunoglobulin A concentrations [IgA(s)] of nine individuals were examined during 12 weeks of moderate exercise training, and compared to ten sedentary controls. Changes in maximal oxygen uptake were assessed at initial, mid-point and final evaluations (T1-3), while changes in [IgA(s)] and salivary immunoglobulin concentration-salivary albumin concentration ratio ([IgA(s)]:[Alb(s)]) were monitored at T1 and T3. During the 12 week period, symptoms of URTI were self-recorded daily. During the period of training the level of fitness significantly increased ( P<0.05) in the exercise group. The number of days recording symptoms of influenza, but not of cold, and total light URTI symptoms was significantly reduced in the exercise group during the last weeks of training. A significant increase in [IgA(s)] and in [IgA(s)]:[Alb(s)] was found in the exercise group after training. Both [IgA(s)] and [IgA(s)]:[Alb(s)] were significantly related to the number of days showing symptoms of influenza ( P<0.01) and the total number of days of sickness ( P<0.05). These data provide quantitative support for the belief that regular, moderate exercise results in an increased [IgA(s)] at rest and [IgA(s)]:[Alb(s)], which may contribute to a decreased risk of infection.
Panagiota Klentrou; Thomas Cieslak; Melanie MacNeil; Angela Vintinner; Michael Plyley
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2002-04-17
Journal Detail:
Title:  European journal of applied physiology     Volume:  87     ISSN:  1439-6319     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2002 Jun 
Date Detail:
Created Date:  2002-06-18     Completed Date:  2003-01-22     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  153-8     Citation Subset:  IM    
Faculty of Applied Health Sciences, Brock University, St. Catharines, Ontario L2S 3A1, Canada.
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MeSH Terms
Adaptation, Physiological / physiology
Albumins / immunology,  secretion
Disease Susceptibility / immunology,  physiopathology
Exercise Test / adverse effects*
Immunoglobulin A, Secretory / immunology*,  metabolism
Middle Aged
Monitoring, Immunologic / methods
Respiratory Tract Infections / etiology,  immunology*
Risk Assessment
Saliva / immunology,  secretion
Salivary Proteins and Peptides / immunology,  secretion
Sensitivity and Specificity
Statistics as Topic
Reg. No./Substance:
0/Albumins; 0/Immunoglobulin A, Secretory; 0/Salivary Proteins and Peptides

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