运动引起的脱水不会影响自然月经妇女的认知表现
Meg A Doohan1,2, Neil King1, Melanie J White3
1School of Exercise and Nutrition Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Australia.
Temperature (Austin, Tex.)
|January 22, 2026
概括
这项研究发现,尽管在运动期间出现显著的脱水和热量,但月经女性的认知表现仍然具有弹性. 像执行功能这样的认知功能在很大程度上不受这些生理压力因素的影响.
科学领域:
- 环境生理学环境生理学
- 认知神经科学 认知神经科学
- 运动科学 运动科学
背景情况:
- 关于对热和脱水的生理反应的研究历来忽视了女性生理学.
- 鉴于女性参与体力要求较高的角色和活动的增加,了解性别特异性反应至关重要.
研究的目的:
- 调查运动诱导的高温和脱水对自然月经的女性认知表现的影响.
- 评估执行功能,包括认知抑制,工作记忆和在热和脱水压力下认知灵活性.
主要方法:
- 十二个休训练的雌性在他们的中期流体期经历了两个条件:脱水 (没有液体) 和水分 (液体替代).
- 参与者在40°C,20%的湿度环境中骑自行车进行了三次45分钟的比赛.
- 认知表现使用参数Go/No-Go (PGNG),Corsi Block Tapping (CBT) 和Classic Stroop任务进行评估.
主要成果:
- 在DEHY条件下,生理标记表明显著脱水 (体质损失:-3.57公斤,血清度:299mOsm·kg-1).
- 与假设相反,大多数任务的认知表现并没有受到脱水和热量的显著影响.
- 在PGNG任务的水合条件下观察到反应时间较慢,但整体认知功能在很大程度上保持了.
结论:
- 月经期女性的认知表现显示出对运动诱导的脱水和热应激的综合性有显著的弹性.
- 这些发现强调了在具有挑战性的环境和生理条件下执行功能的稳定性.
- 这项研究有助于更好地了解性别特异性对环境压力因素的生理和认知反应.
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