Vol. 7, No 1, 2009 pp. 69 - 77
UDC 547.92:797.015
Original empirical article

THE EFFECT OF DIFFERENT INTENSITY OF EXERCISE ON
SALIVARY STEROIDS CONCENTRATION IN ELITE GIRL SWIMMERS
B. Yazdanparast1, M.A. Azarbayjani2, M.J. Rasaee3, Morteza Jourkesh4, Sergej M. Ostojic5
1IA University, Varamin Branch, Iran,
2Exercise Physiology Dept., Faculty of Physical Education, IA University, Central Tehran Branch, Tehran, Iran;
3Dept. of Biochemistry, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran;
4Department of Physical Education and Sports Science, IA University, Shabestar Branch, Iran;
5Faculty of Sport and Tourism, PA University of Novi Sad, Serbia
E-mail: jourkesh_2006@yahoo.com; mjourkesh@iaushab.ac.ir

Abstract. The purpose of this study was examine to effect of different exercise intensity (low, medium and high) on the salivary concentration of Cortisol and DHEA in elite girl swimmers. 10 young swimmer girls were voluntary selected as subjects. The subjects participated in a 6-week exercise program. Exercise program divided to three time courses. Basic endurance season in the first two weeks, Special endurance season in the second two week and the hard exercise season in the last two weeks. Salivary samples were collected at the end of each two weeks before and immediately after exercise from the study group. Concentrations of salivary steroids determined by using ELISA method .The findings of the research show that: exercise with low, medium and high intensity does not have a significant effect on the concentration of, cortisol, DHEA and the ratio of salivary DHEA: C of elite girl swimmers p>0.05. There is no significant correlation between concentrations with salivary cortisol after exercise with high and low intensity p>0.05. But negative significant correlation was found between concentrations with salivary cortisol after exercise with medium intensity p<0.05. There is no significant correlation between concentrations with ratio of salivary DHEA: C after exercise with low, medium and high intensities p>0.05.In conclusion the result of this study show that salivary steroid not affected by intensity of exercise.
Key words:  Cortisol, DHEA, Saliva, Swimmer, Training

EFEKTI RAZLIČITOG INTENZITETA VEŽBANJA
NA KONCENTRACIJU STEROIDA U PLJUVAČKI VRHUNSKIH PLIVAČICA
Svrha ove studije je bila da se utvrde efekti različitih intenziteta vežbi (nizak, srednji i visok) na koncentraciju Kortisola i DHEA u pljuvački vrhunskih plivačica. 10 mladih plivačica su dobrovoljno izabrane za ispitanice. Ispitanice su učestvovale u šestonedeljnom programu vežbi. Program vežbi je bio podeljen u tri vremenska dela. Deo osnovne izdržljivosti je izvođen u prve dve nedelje, deo specijalne izdržljivosti u druge dve nedelje, i deo sa teškim vežbama u poslednje dve nedelje. Uzorci pljuvačke su sakupljeni na kraju svake dve nedelje, pre i odmah posle vežbanja studijske grupe. Koncentracija steroida u pljuvački je utvrđena korišćenjem ELISA metoda. Rezultati istraživanja su pokazali da: vežbe sa niskim, srednjim i visokim intenzitetom nemaju značajan efekat na koncentraciju kortisola, DHEA i razmeru DHEA u pljuvački C vrhunskih plivačica p>0.05.
Nije postojala značajna korelacija između koncentracije sa kortisolom u pljuvački nakon vežbanja sa visokim i niskim intenzitetom p>0.05. Ali negativna značajna korelacija je pronađena između koncentracije sa kortisolom u pljuvački nakon vežbanja sa srednjim intenzitetom p<0.05. Nije postojala značajna korelacija između koncentracije sa razmerom DHEA u pljuvački: C nakon vežbanja sa niskim, srednjim i visokim intenzitetima p>0.05. U zaključku rezultati ove studije pokazuju da steroidi u pljuvački ne utiču na intenzitet vežbanja.
Ključne reči: Kortizol, DHEA, Pljuvačka, Plivač, Trening