[Effect of concurrent training on Salivary IgA, cortisol, DHEA concentration and DHEA cortisol ratio in untrained females]

ABSTRACT

The aim of this study was to assess the effect of concurrent training on salivary IgA, cortisol, DHEA concentration and DHEA cortisol ratio in untrained female. Thirty-nine untrained volunteer female students [aged; 24 +/- 2.5 yr, height; 161 =/- 8.2 cm, weight; 56.8 +/- 14.61 kg] were selected objectively and were randomly divided into four groups Control [C; n=9], Endurance [E; n=10], Resistance [S; n=10] and the Concurrent [SE; n=10] groups. E training consisted of running 65% MHR for 16 minutes during the first week, reaching 80% MHR for 30 minutes during the 8th weeks. S training consisted of four leg-press, bench-press, pull down curls, and legs curls. During the first week, the intensity of training was at 50% 1RM in two sets with 10 repetitions, and was the increased to 80% 1 RM in 3 sets and 6 repetitions, during the 8th week. The SE training included a combination of two S and E training in the same manner for each respective group. Before and after 4 and 8 weeks of trainings, at 8 o'clock in the morning unstimulated salvia samples were collected and measured by ELISA. ANOVA for repeated measures showed, that the S group, compared to other groups, had significant difference in IgA, DHEA and DHEA cortisol ratio [p cortisol concentrations of groups and no significant correlation was found between IgA and cortisol [p resistance training caused increase in salivary IgA as one of the immune indexes and increase in DHEA and the DHEA cortisol ratio as one of the body anabolic status indexes. Endurance training however, performed after resistance training suppressed some of the positive adaptation of resistance training per se