激素宫内器械和运动期间的热交换
Nathalie V Kirby1, Robert D Meade1, Brodie J Richards1
1Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada.
The Journal of physiology
|February 17, 2024
概括
荷尔蒙子宫内置器 (IUD) 似乎不会影响女性在温暖的环境中炼时散热的能力. 运动-热应激期间的热调节不会因IUD使用而受到影响,无论月经周期的阶段如何.
科学领域:
- 运动生理学 运动生理学
- 热调节 热调节 热调节
- 女生殖内分泌学 女生殖内分泌学
背景情况:
- 口服避孕药中的合成孕激素可能会通过减少皮肤血液流动和出汗来损害散热.
- 孕激素释放子宫内装置 (IUD) 在运动-热应激期间对热量损失的影响仍然未知.
- 对女性运动员和活跃女性来说,了解荷尔蒙对温度调节的影响至关重要.
研究的目的:
- 调查孕激素释放性宫内避孕器是否能调节身体全身的热量损失,在身体活跃的妇女的运动-热量压力.
- 为了在月经周期的不同阶段,比较带有IUD和没有IUD的女性之间的热量损失.
- 确定外源性和内源性女性性激素在运动温度调节中的作用.
主要方法:
- 直接热量计用于测量全身总热量 (干燥+蒸发) 损失.
- 参与者包括有 (IUD; n=19) 和没有 (控制; n=17) IUD 的年轻,身体活跃的女性.
- 在卵泡和形阶段,在受控的温暖环境 (30°C,~21%的RH) 中,以轻度和中度强度进行运动.
主要成果:
- 在IUD使用者和对照者之间,在轻度和中度运动期间,全身总热量损失在统计学上是相当的.
- 干燥和蒸发热量损失在各组之间也相等,在适度运动期间的小例外.
- 在个体中,在黄质阶段,干热损失更大,但在月经周期阶段之间,整体热损失结果仍然相当.
结论:
- 孕激素释放性宫内节育器似乎不会在温暖的环境中影响运动温度调节.
- 虽然月经周期阶段显示干热损失的微小变化,但这些并没有显著影响整体热交换.
- 这些发现有助于理解女性激素对热交换的影响,并对运动生理学研究产生影响.
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