在足球训练期间暴露于高核心温度:对自主神经系统恢复和功能的影响
Eric Renaghan1, Harrison L Wittels2, Luis A Feigenbaum1,3
1Department of Athletics, Sports Science, University of Miami, Miami, FL 33146, USA.
Sports (Basel, Switzerland)
|January 22, 2024
概括
在高核心温度下炼会对自主神经系统 (ANS) 功能和恢复产生负面影响. 在较高温度 (≥38°C) 的较长训练时间显著加剧了运动员的这些影响.
科学领域:
- 运动生理学 运动生理学
- 自主神经系统功能 自主神经系统功能
- 环境压力因素 环境压力因素
背景情况:
- 运动期间核心体温升高可能会损害自主神经系统 (ANS) 功能.
- 在炎热条件下长时间训练可能会加剧这些负面的生理反应.
- 了解热暴露对运动员恢复的影响对于表现和健康至关重要.
研究的目的:
- 调查运动训练持续时间与24小时ANS恢复和功能之间的关系.
- 评估在特定核心温度值 (≥37°C,≥38°C,≥39°C) 上的ANS反应.
- 为了确定训练时间对心率 (HR) 和运动后心率变化 (HRV) 的影响.
主要方法:
- 在25周的赛季中,对50名男性第一师大学美式足球运动员进行了纵向研究.
- 使用腕带设备监测核心体温和24小时运动后的ANS标记 (HR,HR恢复,HRV指数rMSSD和SDNN).
- 线性回归模型分析了在定义的核心温度值下训练时间和ANS恢复/功能之间的关联.
主要成果:
- 在核心温度≥38°C和≥39°C时,在训练持续时间和ANS恢复/功能之间发现了显著的负相关性.
- 在≥38°C,增加训练时间与较差的基线HR,HR恢复,rMSSD和SDNN相关.
- 在≥39°C时,这些负面关联甚至更强烈,表明随着更长的训练时间,ANS恶化加快.
结论:
- 在核心温度升高 (≥38°C) 的运动训练会损害24小时自主神经系统的恢复和功能.
- 对ANS功能的负面影响随着核心温度的增加和训练时间的延长而逐渐恶化.
- 这些发现凸显了热应激对运动员生理恢复的有害影响.
更多相关视频
05:48Autonomic Function Following Concussion in Youth Athletes: An Exploration of Heart Rate Variability Using 24-hour Recording Methodology
Published on: September 21, 2018
10.1K
08:22Using an Ingestible Telemetric Temperature Pill to Assess Gastrointestinal Temperature During Exercise
Published on: October 7, 2015
10.6K
相关概念视频
Responses to Heat and Cold Stress
13.5K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.5K
Exercise and Cardiovascular Response
815
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
815
Factors Affecting Body Temperature
4.2K
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:
4.2K
Increased Body Temperature
674
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
674
Sympathetic Activation
5.3K
The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
5.3K
Homeostatic Imbalances in Body Temperature
128
Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
128
