Kraemer R R, Blair M S, McCaferty R, Castracane V D
Department of Health, Physical Education, and Dance, Southeastern Louisiana University.
Res Q Exerc Sport. 1993 Mar;64(1):69-74. doi: 10.1080/02701367.1993.10608780.
This study examined whether gender and/or training were related to the exercise-induced changes in plasma concentrations of growth hormone (GH), prolactin (PRL), triiodothyronine (T3), and thyroxine (T4). Twenty subjects (male and female 10-km runners; untrained males and females) ran on a treadmill for 30 min at 80% of previously determined maximum heart rate. Blood samples were taken through an indwelling catheter from an antecubital vein at -30, 0, +15, +30 min of the test and 30 min of recovery. Rectal temperature rose significantly (p < .01) at +15 and +30 min with concomitant rise in GH concentration, but PRL, T3, and T4 were not affected by the exercise. We concluded that a 30-min run at 80% of maximum heart rate is associated with higher concentrations of GH but not of PRL, T3, and T4. Neither training state nor gender affected the aforementioned results.
本研究探讨了性别和/或训练是否与运动诱导的生长激素（GH）、催乳素（PRL）、三碘甲状腺原氨酸（T3）和甲状腺素（T4）血浆浓度变化有关。20名受试者（男女10公里跑者；未受过训练的男性和女性）在跑步机上以先前确定的最大心率的80%跑30分钟。在测试的-30、0、+15、+30分钟以及恢复30分钟时，通过留置导管从前臂静脉采集血样。在+15和+30分钟时直肠温度显著升高（p <.01），同时GH浓度升高，但PRL、T3和T4不受运动影响。我们得出结论，以最大心率的80%进行30分钟跑步与较高的GH浓度相关，但与PRL、T3和T4无关。训练状态和性别均未影响上述结果。
