在炎热的天气中,在运动后摄入碳酸水可以暂时缓解低血压,改善情绪状态
Masanobu Kajiki1, Akira Katagiri1, Ryoko Matsutake1
1Institute of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan.
Experimental physiology
|August 14, 2024
概括
在炎热的运动后饮用碳酸水有助于降低低血压,并促进大脑的血液流动. 它还改善了清爽感,并减少了运动后的嗜睡.
科学领域:
- 运动生理学 运动生理学
- 环境生理学环境生理学
- 运动营养 运动营养
背景情况:
- 运动后低血压是一个常见的问题,特别是在炎热的环境中.
- 保持足够的脑血流对于体力炼期间和之后的认知功能至关重要.
- 补水策略在温度调节和生理恢复方面发挥着重要作用.
研究的目的:
- 为了研究碳酸水消费对运动后低血压的影响.
- 为了评估碳酸水对大脑血流的影响.
- 评估碳酸水对在热中炼后温度调节和感知反应的影响.
主要方法:
- 十二名健康,活跃的成年人在35°C的环境中完成了60分钟的骑自行车.
- 参与者在运动后的20分钟和40分钟内摄入冷 (4°C) 碳酸或非碳酸水.
- 测量包括平均动脉压,中脑动脉血流速度和主观感知.
主要成果:
- 这两种水类暂时增加了平均动脉压和脑血流指数.
- 与非碳酸水相比,摄入碳酸水导致运动后20分钟平均动脉压和脑血流指数明显增加.
- 碳酸水增强了口腔兴奋的感觉,并在运动后40分钟减少了嗜睡,而热量损失反应没有显著差异.
结论:
- 运动后摄入碳酸水可以暂时缓解低血压,并在炎热的环境中增强大脑血流.
- 碳酸水消费对感知反应产生积极影响,增加口腔兴奋,并在运动后的后期阶段减少嗜睡.
- 这些发现表明,碳酸水可能是运动员在炎热条件下炼的有益水合策略.
相关概念视频
Hyperpnea and Hyperventilation
997
Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
997
Carbonation Shrinkage
121
Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction...
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction...
121
Bicarbonate-Carbonic Acid Buffer
998
The carbonic acid-bicarbonate buffer system is critical for maintaining the body's pH balance. It operates on the equilibrium:
998
Disorder of Water Balance
324
Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
324
Exercise Stress Test
185
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
185
Respiratory Regulation of Acid-Base Balance
338
Respiratory compensation is a vital physiological process that stabilizes blood plasma pH by regulating the partial pressure of carbon dioxide (PCO2), a key determinant of pH levels. Most carbon dioxide in the blood dissolves and converts into carbonic acid (H2CO3). It dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3⁻). There is also an inverse relationship between PCO2 and pH.
When carbon dioxide levels increase in the blood, more H+ and HCO3⁻ are...
When carbon dioxide levels increase in the blood, more H+ and HCO3⁻ are...
338


