The Ribstein Center for Research and Sports Medicine Sciences, Wingate Institute, Netanya, Israel.
Eur J Appl Physiol. 2010 Dec;110(6):1283-90. doi: 10.1007/s00421-010-1612-6. Epub 2010 Aug 28.
Exercise training efficiency depends on the training load, as well as on the athlete's ability to tolerate it. The aim of the present study was to evaluate the effect of fighting simulation (3 fights, 6 min each, 30 min rest between fights) on anabolic (IGF-I, LH, FSH, estradiol, and testosterone) and catabolic hormones (cortisol) in elite, male (n = 10) and female (n = 10) adolescent (12-17 years) Taekwondo fighters. Blood samples were collected before the first and immediately after the third fight. The fighting simulation practice led to significant (p < 0.05) decreases in IGF-I (males -27.1 ± 25.6, females -22.4 ± 36.3 ng/ml), LH (males -0.7 ± 1.2, females -2.3 ± 3.3 U/L), and FSH (males -0.9 ± 0.5, females -1.5 ± 1.1 U/L), and to a significant increase (p < 0.05) in cortisol (males 141.9 ± 30.1, females 64.1 ± 30.6 mcg/dL) in both genders. Fighting simulation decreases in testosterone (males -1.9 ± 1.6, females -0.02 ± 0.06 ng/mL), and free androgen index (males -20.1 ± 21.5, females -0.3 ± 0.5) were significant (p < 0.05) only in male fighters. Exercise had no significant effect on estradiol, sex-hormone-binding globulins or thyroid function tests. Our data demonstrate that the physiologic and psychologic strain of a Taekwondo fighting simulation day led to a catabolic-type circulating hormonal response.
运动训练效率取决于训练负荷以及运动员的耐受能力。本研究旨在评估格斗模拟（3 场，每场 6 分钟，每场之间休息 30 分钟）对精英青少年（男性 n=10，女性 n=10，年龄 12-17 岁）跆拳道运动员的合成代谢（IGF-I、LH、FSH、雌二醇和睾酮）和分解代谢激素（皮质醇）的影响。在第一次和第三次战斗后立即采集血液样本。格斗模拟练习导致 IGF-I（男性-27.1±25.6，女性-22.4±36.3ng/ml）、LH（男性-0.7±1.2，女性-2.3±3.3U/L）和 FSH（男性-0.9±0.5，女性-1.5±1.1U/L）显著降低（p<0.05），皮质醇（男性 141.9±30.1，女性 64.1±30.6mcg/dL）显著升高（p<0.05），两种性别均如此。格斗模拟导致睾酮（男性-1.9±1.6，女性-0.02±0.06ng/mL）和游离雄激素指数（男性-20.1±21.5，女性-0.3±0.5）显著降低（p<0.05），仅在男性运动员中显著。运动对雌二醇、性激素结合球蛋白或甲状腺功能试验没有显著影响。我们的数据表明，跆拳道格斗模拟日的生理和心理压力导致了一种分解代谢型循环激素反应。
