呼吸肌训练对训练有素的铁人三项运动员的皮质醇、睾酮和睾酮-皮质醇比率的急性影响--探索性研究。

IF 1.9 4区医学 Q3 PHYSIOLOGY

Respiratory Physiology & Neurobiology Pub Date : 2024-09-17 DOI:10.1016/j.resp.2024.104353

Tomasz Kowalski , Zbigniew Obmiński , Wojciech Waleriańczyk , Andrzej Klusiewicz

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引用次数: 0

摘要

该研究调查了皮质醇（C）和睾酮（T）的急性变化，这些变化与一种流行的 RMT 方法--自愿等压高呼吸（VIH）--有关，该方法适用于训练有素的铁人三项运动员。19 名运动员（7 名女性，12 名男性）进行了一次 VIH 训练，并在训练前后测量了血清 C 和 T。采用重复测量方差分析来分析 VIH 期间的激素变化，并增加了时间-性别交互作用。计算了皮尔逊相关系数，以确定激素变化与年龄、人体测量指数、呼吸肌力量和训练经验之间的关系。在统计学上，C 的变化有显著影响（F = 13.101，p = 0.002，ηp2 = 0.421，ω2 = 0.08）。VIH 后，C 浓度明显降低（平均差异 = -32.49 ± 39.13 nmol*L-1）。没有观察到 T、T/C 比和时间-性别交互作用的明显影响（p > 0.05）。在许多因素中，体脂百分比与 C 变化（r=-0.464，p=0.045）、体重与 T 变化（r=0.516，p=0.024）、身高与 T 变化（r=0.509，p=0.026）之间存在明显的相关性。VIH 明显降低了 C 浓度。对 T、T/C 比值没有明显影响，也没有观察到性别差异。在所有监测指标中都观察到了值得注意的个体差异。研究发现，与 VIH 相关的急性激素变化与选定的人体测量指标之间存在明显的相关性。这项研究初步揭示了 VIH 在运动员荷尔蒙平衡中的作用，从而为运动员的运动处方、自动调节、唤醒状态管理和恢复实践提供指导。

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The acute effect of respiratory muscle training on cortisol, testosterone, and testosterone-to-cortisol ratio in well-trained triathletes - exploratory study

The study investigated acute changes in cortisol (C) and testosterone (T) associated with a popular RMT method, voluntary isocapnic hyperpnoea (VIH), in well-trained triathletes. 19 athletes (7 females, 12 males) performed a VIH training session with pre- and post- serum C and T measurements. Repeated measures ANOVA was employed to analyze hormone changes during VIH, with additional time-sex interaction. Pearson correlation coefficient has been computed to identify the relationship between hormonal changes and age, anthropometric indices, respiratory muscle strength, and training experience. There was a statistically significant effect for C changes (F = 13.101, p = 0.002, η_p² = 0.421, ω² = 0.08). The C concentration was significantly lower after VIH (Mean Difference = −32.49 ± 39.13 nmol*L⁻¹). No significant effects for T, T/C ratio, and time-sex interactions were observed (p > 0.05). Amongst many, significant correlations between the percentage of body fat and changes in C (r=-0.464, p=0.045), body mass and changes in T (r=0.516, p=0.024), height and changes in T (r=0.509, p=0.026) were found. VIH significantly lowered C concentration. No significant effects for T, T/C ratio, and no between-sex differences were observed. Noteworthy individual variability was observed in all the monitored indices. Significant correlations were found between acute hormone changes associated with VIH and selected anthropometric indices. The study provides initial insight into VIH’s role in athletes’ hormonal balance to possibly guide exercise prescription, autoregulation, arousal state management, and recovery practices in athletes.

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来源期刊

Respiratory Physiology & Neurobiology 医学-呼吸系统

CiteScore

4.80

自引率

8.70%

发文量

104

审稿时长

54 days

期刊介绍： Respiratory Physiology & Neurobiology (RESPNB) publishes original articles and invited reviews concerning physiology and pathophysiology of respiration in its broadest sense. Although a special focus is on topics in neurobiology, high quality papers in respiratory molecular and cellular biology are also welcome, as are high-quality papers in traditional areas, such as: -Mechanics of breathing- Gas exchange and acid-base balance- Respiration at rest and exercise- Respiration in unusual conditions, like high or low pressure or changes of temperature, low ambient oxygen- Embryonic and adult respiration- Comparative respiratory physiology. Papers on clinical aspects, original methods, as well as theoretical papers are also considered as long as they foster the understanding of respiratory physiology and pathophysiology.