Volume 18, Issue 4 (Winter 2013)                   Intern Med Today 2013, 18(4): 191-196 | Back to browse issues page

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Talebi K, Hejazi S M, Mottaghi M R, Basiry Moqadam M, Irani H, Gholami Koopaie M. Effect of intense exercise on the concentration of immunoglobulin A and salivary cortisol in swimmers. Intern Med Today 2013; 18 (4) :191-196
URL: http://imtj.gmu.ac.ir/article-1-1476-en.html
1- Department of Sport Physiology, Faculty of Physical Education, Mashhad Branch, Islamic Azad University, Mashhad, Iran
2- Department of Basic Sciences, Faculty of Paramedical, Gonabad University of Medical Sciences, Gonabad, Iran , mottaghym@yahoo.com
3- Department of Nursing, Faculty of Nursing & Midwifery, Gonabad University of Medical Sciences, Gonabad, Iran
4- Department of Sport Physiology, Faculty of Physical Education, Rajayi Teacher Training University, Tehran, Iran
Abstract:   (7579 Views)

Aims: Salivary Immunoglobulin A is the most important part of immune system in upper respiratory tract. The findings of the studies regarding hormonal and immune changes, especially mucosal immune system, are highly contradictory and different. The purpose of this study was to compare the effect of intense exercise in the morning and evening on the concentration of salivary cortisol and Immunoglobulin A, in young swimmers.

Methods: This study is a quasi- experimental design conducting in 2010-11 academic years. The population of the study included 120 young boy swimmers, studying in a guidance school in Gonabad city, of which 20 were selected using random convenient sampling method. The subjects performed the selected exercise in two times, one on 11 in the morning and the other after 16 days. Saliva samples were taken before and immediately after the intensive exercise. The data were analyzed using SPSS 14 software by paired T-test.

 Results: A significant decrease of Immunoglobulin A was observed in the morning exercise. Likewise, a significant decrease in cortisol was seen in the evening exercise. The amount of swimmers’ salivary Immunoglobulin A and cortisol had a significant decrease after the exercise compared with before it (p=0.0001). Moreover, their amount in the evening turn had a significant decrease compared to the morning turn (p=0.0001).

Conclusion: intense exercise decreases the salivary Immunoglobulin A and cortisol levels in the morning and evening that may affect the incident of respiratory tract infections.
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Type of Study: Applicable | Subject: Allergy and Clinical Immunology
Received: 2012/04/7 | Accepted: 2013/05/5 | Published: 2013/05/5

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