热调节,心血管和免疫反应对不同被动热疗模式的比较
Jessica K Atencio1, Emma L Reed1, Karen Wiedenfeld Needham1
1Department of Human Physiology, University of Oregon, Eugene, Oregon, USA.
概括
与传统和远红外桑拿相比,热水浸泡 (HWI) 显著增加了核心体温,心脏输出和免疫反应. 在被动加热方法中,HWI引起了最大的温度调节,心血管和免疫效应.
科学领域:
- 生理学 生理学 生理学
- 免疫学 免疫学 免疫学
- 心血管科学 心血管科学
背景情况:
- 像桑拿和热水浸泡这样的被动加热方式被用于健康益处.
- 了解对各种加热方法的不同生理反应对于治疗应用至关重要.
研究的目的:
- 为了比较健康成年人对急性热水浸泡 (HWI),传统桑拿 (TRAD) 和远红外桑拿 (FIR) 的温度调节,心血管和免疫反应.
主要方法:
- 20名健康成年人接受了三次被动加热:HWI (40.5°C45分钟),TRAD (80°C3x10分钟) 和FIR (45-65°C45分钟).
- 核心温度 (Tc),心脏输出量 (Qc),炎症性细胞因子 (IL-6) 和免疫细胞群 (NK细胞,CD8+T细胞) 在加热前,加热期间和加热后长达48小时被测量.
主要成果:
- 与传统和远红外桑拿相比,热水浸泡诱导了核心温度的显著增加.
- 心脏输出增加最显著的是HWI,其次是传统的桑拿,最少的是FIR.
- 只有HWI引发了显著的炎症和免疫反应,包括加热后增加IL-6,NK细胞和CD8+T细胞.
结论:
- 与传统和远红外桑拿相比,单次热水浸泡会引起更好的温度调节,心血管和免疫反应.
- 在测试的模式中,远红外桑拿加热对核心体温,心血管功能和免疫反应的影响最小.
相关概念视频
Mechanism of heat transfer
1.1K
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...
1.1K
Body Temperature
830
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...
830
Thermosensation
30.2K
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
30.2K
Decreased Body Temperature
573
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
573
Thermoregulation
666
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,...
666
Mechanisms of Heat Transfer
87
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
87


