چکیده:
Stress is inevitable in competitive sports. Table tennis in the world known as a fastest ball game that requires attention and control stress. The main purpose of this study was investigation of physiological stress responses in elite table tennis players during competition. 16 female table tennis players (age average of 18.7 ± 3.8, height average of 161.6 ± 3.4 cm and weight average of 50.1 ± 4.2 kg) that participating in elective national team selected. During 8 competitive racing, salivary levels of Cortisol (C), testosterone (T) and Immunoglobulin A (sIgA) at rest, 60 and 30 minutes before and 60 and 30 minutes after racing were measured through saliva by enzymatic methods(ELISA). Data were analyzed using two-way repeated-measures analysis of variance. The findings presented that Cortisol level in loser player was significantly increased than winner player (p<0.05); while there was no significant difference in testosterone and sIgA levels (p>0.05). Also significant difference in salivary testosterone, Cortisol and sIgA periods of 60 and 30 minutes before and after competition observed in the group of winners and losers than rest(p<0.05). Table tennis competition puts high stress on young players, that probably these indicators affect the performance table tennis players. Cortisol as an indicator of stress has an important effect on losers than winners.
خلاصه ماشینی:
"The Responses of Physiological Stress during Table Tennis Competition in Elite Female Players 1Sara Barmaki*, 1Ali Khazani, 2Narges Ziaee 1 Department of Sport Sciences, Faculty of Humanities, Ardabil Branch, Islamic Azad University, Ardabil, Iran.
Also significant difference in salivary testosterone, Cortisol and sIgA periods of 60 and 30 minutes before and after competition observed in the group of winners and losers than rest(p<0.
Considering the importance of physiological stress on athletic performance in sports, helping athletes and coaches to control stress factors, this study investigated the physiological responses during the table tennis elite female players in competition.
To compare the concentration of cortisol, testosterone and IgA before and after each match, a two-way analysis of variance (ANOVA) with repeated measured was used (performance and salivary collection times) (2×5).
Significant difference observed in the group of winners and losers at 60 and 30 minutes before and after racing time than rest time in salivary Cortisol, testosterone and IgA (p < 0.
Our results indicate that Cortisol levels on loser player than winner player significantly increase; however, changes in testosterone and IgA responses were not significant.
(2015) showed significantly lower salivary Cortisol levels during training when compared to the match at all points in time except during the evening for winner’s competition in young female tennis players (21).
Furthermore, Filaire and colleague (2009) in a study on tennis players during the first single match of a tournament showed significant differences between winners and losers Cortisol concentrations that Cortisol concentrations being the highest at the loser’s."