EFFECT OF EXERCISE ON THE LEVEL OF IMMUNOGLOBULIN A IN SALIVA
Journal Title: Biology of Sport - Year 2012, Vol 29, Issue 4
Abstract
The aim of this paper is to describe the structure, production and function of secretory immunoglobulin A (sIgA) as well as changes of its concentration caused by exercise of various intensity and duration. Immunoglobulin A is the main class of antibodies present in the body secreted fluids such as saliva, tears or mucus from the intestines. It is generally recognized that IgA, due to its dominance in the immune system of mucous membranes, is the first line of defence against harmful environmental factors. The secretion and composition of saliva depends on the activity of the sympathetic and parasympathetic nervous systems. Physical activity, stimulating the autonomous nervous system, may reduce the amount of saliva and/or inhibit its secretion. The relationship between physical activity and the suppression of the immune system is not fully understood, but it is known that moderate intensity exercise can improve immune defences, while extreme effort can reduce them by creating an increased risk of upper respiratory tract inflammation (URTI). In athletes, the lowest risk of upper tract infection was connected with the case of moderate intensity exercise. It is now believed that the relationship between exercise volume and the risk of URTI has the shape of the letter “J”. This means that both too little and too much physical activity may increase the risk of upper respiratory tract infection. Training optimization and correct balance between exercise and rest periods may reduce the risk of adverse changes in the immune system and decrease the frequency of URTI.
Authors and Affiliations
Teresa Trochimiak, Elżbieta Hübner-Woźniak
Keywords
Related Articles
- EP ID EP59121
- DOI -
- Views 84
- Downloads 0
Swimming bodysuit in all-out and constant-pace trials
There is no doubt that many swimmers do benefit from wearing bodysuit. The questions whether these suits improve performance and should they be allowed in competition are still being asked. The first aim of the study was...
Effects of general, specific and combined warm-up on explosive muscular performance
The purpose of this study was to compare the acute effects of general, specific and combined warm-up (WU) on explosive performance. Healthy male (n=10) subjects participated in six WU protocols ina crossover randomized s...
Comparison of DeLorme with Oxford resistance training techniques: effects of training on muscle damage markers
Aim: The purpose of this study was comparing DeLorme with Oxford methods through ten repetition maximum (10 RM) performance and serum creatine kinase (CK) and lactate dehydrogenase (LDH) activity. Methods: Before and aft...
NIGARI (DEEP SEAWATER CONCENTRATE) ENHANCES THE TREADMILL EXERCISE PERFORMANCE OF GERBILS
The beneficial effect of magnesium supplementation on exercise performance has been reported by many researchers. In the present study, the effect of nigari, a concentrate of deep seawater containing high magnesium level...
Verification of the basic values of respiratory indices due to Polish kayakers
The aim of the present investigation was to examine the effect of training of kayakers on their pulmonary function based on the measurements of spirometric indices and to determine values thereof due to kayakers. Seventy...