Changes of Salivary IgA of athletes after a single bout of exercise in cold, warm and natural environments

AUTHORS

Sadegh Satarifard 1 , * , Abbas Gaeini 2 , Cirous Choobineh 3 , Leyla ShafieiNeek 1 , Atiyeh Azami 4

1 PhD Student of Sport's Physiology, Tehran University, Tehran, Iran.

2 Professor Department of Sport's Physiology, Tehran University, Tehran, Iran.

3 Assistant Professor Department of Sport's Physiology, Tehran University, Tehran, Iran.

4 PhD of Laboratory Sciences, Tehran University, Tehran, Iran.

How to Cite: Satarifard S, Gaeini A, Choobineh C, ShafieiNeek L, Azami A. Changes of Salivary IgA of athletes after a single bout of exercise in cold, warm and natural environments, Hormozgan Med J. 2013 ; 17(3):e88138.

ARTICLE INFORMATION

Hormozgan Medical Journal: 17 (3); e88138
Published Online: February 10, 2012
Article Type: Research Article
Received: October 26, 2011
Accepted: February 10, 2012

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Abstract

Introduction: Exercise and environmental stressors cause alteration in different
components of the immune and hormonal systems. Therefore, the purpose of this study was
to explore the changes of serum cortisol and salivary IgA of athletes after a single bout of
exercise cold, warm and natural environments.
Methods: Ten young male athletes who ran on a treadmill for 1 hour at %60 VO2max in
environments of natural (22±1°c, 50±5 RH), cold (3±1°c, 50±2 RH) and warm
(35±1°c, 50±5RH). Blood and Saliva samples were collected to measure cortisol and
SIgA before, after exercise and 2 hours after recovery. In addition, during exercise body
temperature, athletes’ consumption water, Plasma Volume Changes, perceived exertion
(borg scale) were measured. In order to analyze the data, Repeated Measure and Bonferroni
tests at the significant level of P<0.05 were utilized.
Results: The cortisol concentration increased significantly after exercise, in three
environments (P<0.0001). This increased values were significant in warm in comparison
with cold (P=0.04) and natural (P=0.031) environments. SIgA concentrations, in three
environments, did not have significant changes after exercise. However, these values
reduced significantly after exercise in cold environment compare to natural (P=0.021) and
hot environment compare to natural (P=0.035).
Conclusion: Exercise in the three environments causes increase serum cortisol as well as
stimulating the Hypothalamic-Pituitary-Adrenal (HPA) axis. But, exercise had no effect on
the levels of SIgA. However, regard to a significant reductions of these values in cold and
warm environments than natural environment after exercise, is possible a risk of respiratory
tract infection in cold and warm environments.

Keywords

Exercise – Cortisol – S IgA - Temperature

© 2013, Hormozgan Medical Journal. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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