RT Journal Article T1 Competition seriousness and competition level modulate testosterone and cortisol responses in soccer players A1 Jiménez Hernández, Manuel A1 Alvero Cruz, José Ramón A1 Solla Aguiar, Juan José A1 García Bastida, Jorge A1 García Coll, Virginia A1 Rivilla, Iván A1 Ruiz, Enrique A1 García Romero, Jerónimo A1 Carnero, Elvis A A1 Clemente Suárez, Javier K1 2411.06 Fisiología del Ejercicio K1 2302.15 Hormonas K1 6106.08 Motivación AB This study aimed to analyze the modulating effect of competition seriousness and competition level in the testosterone and cortisol responses in professional soccer player. Ninety five (95) soccer players were included in this study (professional, n = 39; semiprofessional, n = 27; amateur, n = 29) before and after training, friendly game and official games. Repeated measures ANOVA showed higher testosterone levels (F(1,89) = 134, p < 0.0001, η2p = 0.75) in professional soccer players, when compared with semiprofessional (p < 0.0001) or amateur athletes (p < 0.0001). After winning a competition game an increase in testosterone levels was observed in professionals (t = −3.456, p < 0.001), semiprofessionals (t = −4.400, p < 0.0001), and amateurs (t = −2.835, p < 0.009). In contrast, this momentary hormonal fluctuation was not observed after winning a friendly game or during a regular training day. Additionally, statistical analysis indicated that cortisol levels were lower in professional (t = −3.456, p < 0.001) and semiprofessional athletes (t = −4.400, p < 0.0001) than in amateurs (t = −2.835, p < 0.009). In soccer players a rise in testosterone was only observable when the team was faced with an actual challenge but did not support a different response between categories. Thus, the desire to achieve a goal (and keep the social status) may be one of the key reasons why testosterone levels rise promptly. Conversely, testosterone did not change after friendly games, which suggests these situations are not real goals and the players do not perceive an actual threat (in terms of dominance) more than the preparation for their next competitive game. PB International Journal of Environmental Research and Public Health SN 16604601 YR 2020 FD 2020-01-04 LK http://hdl.handle.net/11093/3373 UL http://hdl.handle.net/11093/3373 LA eng NO International Journal of Environmental Research and Public Health, 17(1): 350 (2020) DS Investigo RD 14-oct-2024