Sekine Yuta, Hirose Norikazu
Teikyo Heisei University.
Daito Bunka University.
Pediatr Exerc Sci. 2022 Feb 1;34(1):28-35. doi: 10.1123/pes.2020-0170. Epub 2021 Sep 11.
To examine differences in resistance exercise-induced hormonal responses among young athletes according to their maturity levels.
A total of 12 collegiate and 32 junior high school male athletes were enrolled. The junior high school participants were divided into pre-peak height velocity (PHV) and post-PHV groups, according to their PHV ages. The salivary testosterone, cortisol, and human growth hormone levels were analyzed before (pre), immediately after (post), and at 15 minutes after performing body weight resistance exercise.
The testosterone levels were higher in the collegiate than in the junior high school group (P < .01) and increased after 15 minutes of exercise (P < .01). A significant decrease in the cortisol levels postexercise in the junior high school groups (P < .01) and an increase in the human growth hormone levels at 15 minutes after exercise in the post-PHV group were observed (P < .01). In the collegiate and post-PHV groups, the testosterone-to-cortisol ratio increased post and at 15 minutes after exercise (P < .01). The testosterone-to-cortisol ratio values were higher in the collegiate than in the post-PHV (at preexercise and at 15 min after [P < .01]) and pre-PHV groups (at all times [P < .01]).
Exercise-induced acute hormonal responses to resistance exercise may depend on individuals' maturity levels, even in those having the same age.
根据成熟度水平，研究年轻运动员在抗阻运动诱导的激素反应方面的差异。
共招募了12名大学男性运动员和32名初中男性运动员。初中参与者根据其身高生长高峰速度（PHV）年龄分为身高生长高峰前（PHV）组和身高生长高峰后组。在进行体重抗阻运动前（运动前）、运动后即刻（运动后）以及运动后15分钟，分析唾液睾酮、皮质醇和生长激素水平。
大学组的睾酮水平高于初中组（P <.01），且运动15分钟后升高（P <.01）。观察到初中组运动后皮质醇水平显著下降（P <.01），身高生长高峰后组运动后15分钟生长激素水平升高（P <.01）。在大学组和身高生长高峰后组，运动后及运动后15分钟睾酮与皮质醇比值升高（P <.01）。大学组的睾酮与皮质醇比值在运动前和运动后15分钟高于身高生长高峰后组（P <.01）以及身高生长高峰前组（在所有时间点，P <.01）。
即使年龄相同，抗阻运动诱导的急性激素反应可能也取决于个体的成熟度水平。
