The Effect of Official Competition on Salivary Testosterone-to-Cortisol Ratio and Sports Performance

The most critical factor affecting competition performance is competitive stress. This study examined the effects of official competition on salivary testosterone-to-cortisol ratio (STCRSTCR), mood states, and sports performance based on the complex relationship between physiological, psychological, and functional variables. Saliva samples of ten male premier league basketball players were collected pre, half-time, and post-in-the-home competition playoffs. Performance statistics (PERF) and mood states (POMS questionnaire) were measured before and after the competition. Results showed a significant decrease in cortisol (F = 47.77, P = 0.001) and a significant increase in testosterone (F = 19.92, P = 0.002) and STCR (F = 15.84, P = 0.004). A significant decrease in vigor (P = 0.037) was also observed, as well as an increase in fatigue (P = 0.001) and total mood (P = 0.031). Results showed a significant correlation between salivary testosterone levels at pre- and half-time of competition with mood components (r = –0.644, P = 0.024), as well as total performance (TP) with salivary testosterone (r = –0.753, P = 0.013) and tension score (r = 0.646, P = 0.043). It is possible for players’ distinctive characteristics, such as experience and a high level of physical fitness, to influence their results. Specifically, these results describe hormonal, mood, and performance changes in male basketball players. This may be useful in the development of individualized basketball training drills.