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Cited by 329

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Salivary IgA levels and infection risk in elite swimmers

GLEESON, MAREE, McDONALD, WARREN A., PYNE, DAVID B., CRIPPS, ALLAN W., FRANCIS, J. LYNN, FRICKER, PETER A., CLANCY, ROBERT L.·1999·Medicine & Science in Sports & Exercise
DOI 10.1097/00005768-199901000-00012
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Abstract

UNLABELLED: The effects of exercise on the immune system has been shown to be dependent on the level of fitness of the subjects, the degree of intensity, and the duration of the exercise. A reduction in salivary IgA levels occurs after individual sessions of exercise. PURPOSE: The purpose of this study was to assess the relationship between changes in salivary IgA and training volume, psychological stress, and infection rates in a cohort of 26 elite swimmers over a 7-month training period and to compare the changes with a group of 12 moderately exercising controls. METHODS: Salivary IgA concentrations were measured by an electroimmunodiffusion. Exercise gradings were assessed by a standardized aerobic-anaerobic rating system. Psychological stress/anxiety was evaluated by the Spielberger State-Trait Anxiety Inventory. Infections were physician-verified. RESULTS: Salivary IgA levels showed an inverse correlation with the number of infections in both elite swimmers and moderately exercising control subjects. The pretraining salivary IgA levels in swimmers were 4.1% lower for each additional month of training and 5.8% lower for each additional infection. The posttraining salivary IgA levels in swimmers were not significantly correlated with infection rates but were 8.5% lower for each additional 1 km swum in a training session and 7.0% lower for each additional month of training. The number of infections observed in the elite swimmers was predicted from regression models by the preseason (P = 0.05) and the mean pretraining salivary IgA levels (P = 0.006). The trends in pretraining salivary IgA levels over the 7-month season, calculated as individual slopes of pretraining IgA levels over time, were also predictive of the number of infections (P = 0.03) in the swimmers. CONCLUSIONS: These results indicate that measurement of salivary IgA levels over a training season may be predictive for athletes at risk of infection.

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Metadata

Authors
GLEESON, M., McDONALD, W. A., PYNE, D. B., CRIPPS, A. W., FRANCIS, J. L., FRICKER, P. A., & CLANCY, R. L.
Venue
Medicine & Science in Sports & Exercise
Publisher
Ovid Technologies (Wolters Kluwer Health)
Published
1999-01
Volume
31
Issue
1
Pages
67-73
ISSN
0195-9131 (ISSN-L)
DOI
10.1097/00005768-199901000-00012
OpenAlex
W1964708707
Cited by
329
References
3
FWCI
11.43
Type
journal article
Language
en
Open access
closed

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