月经周期对温度调节的影响,而在炎热的运动中炼
Katherine S Christison1, Shae C Gurney2, Cassie M Williamson-Reisdorph3
1Department of Sport and Exercise Sciences, State University of New York - Oneonta, 108 Ravine Pkwy, Oneonta, NY, 13820, USA.
Journal of thermal biology
|January 13, 2025
概括
妇女在月经周期中期的月经期期间经历更高的核心体温,当在高温中炼时. 这种升高的温度是保持,尽管与早期的卵泡阶段相比,类似的感知劳动和热应激.
科学领域:
- 运动生理学 运动生理学
- 生殖内分泌学 生殖内分泌学
背景情况:
- 月经周期期间的荷尔蒙波动会影响女性的温度调节.
- 了解这些变化对于优化运动表现和在高温下安全至关重要.
研究的目的:
- 为了研究月经周期阶段 (早期的卵泡和中期的卵泡) 对核心体温,水分和在运动中感知到的劳累的影响.
- 评估荷尔蒙反应,包括雌激素,孕和阿尔多,与温度调节挑战相关.
主要方法:
- 11名健康女性在35°C,30%相对湿度的环境中完成了两次180分钟的试验.
- 运动包括三次50分钟间隔的50%VO2max,测量核心温度,生理应变指数,感知热量和感知炼.
- 在运动前和运动后收集血液样本和体重,以分析荷尔蒙和水分状态.
主要成果:
- 与早期的卵泡期相比,在中期的光期内,核心体温明显高于早期的卵泡期.
- 运动后的阿尔多esterone水平增加,并在中期-luteal阶段保持升高.
- 在月经周期阶段之间,在出汗率,血红素,血红蛋白或百分比脱水方面没有发现显著差异.
结论:
- 妇女在运动中体温升高的过程中,体温升高,与更高的雌激素和孕激素水平相关.
- 尽管核心温度升高,但感知到的劳动和热应力在不同阶段是相似的,这表明温度调节机制发生了变化.
- 阿尔多斯特在暴露于热量期间在液体平衡中发挥作用,在中流阶段持续升高.
相关概念视频
Factors Affecting Body Temperature
3.8K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
3.8K
Thermoregulation
891
The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
891
Body Temperature
894
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
894
Hormonal Regulation of the Menstrual Cycle
280
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
280
The Menstrual Cycle
681
The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
681
Mechanism of heat transfer
1.2K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.2K


