在热环境条件下进行的重复1小时的散步/慢跑运动会中,任意饮用水的可重复性
Eric D B Goulet1,2, Pascale Claveau1, Ivan L Simoneau3
1Faculty of Physical Activity Sciences, University of Sherbrooke, Sherbrooke, PQ J1K 2R1, Canada.
Nutrients
|November 14, 2023
概括
在高温中重复炼期间,Ad libitum (不受限制) 的饮水会导致持续的液体摄入量和体液平衡. 这种饮酒策略也导致随着时间的推移稳定的生理反应和感知.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 环境生理学环境生理学
背景情况:
- 液体补充策略旨在在运动期间保持持续的水分.
- 在炼期间,人们不太了解ad libitum (不受限制) 饮酒的可重复性.
- 了解随意饮酒对于优化水分和在各种运动场景中的表现至关重要.
研究的目的:
- 评估在重复的炼过程中任意饮用水的可重复性.
- 为了检查随意饮酒对液体平衡的长期影响.
- 评估运动在高温中对生理功能和感知感觉的影响.
主要方法:
- 十二名健康人每周完成四次1小时的步行/慢跑运动 (55%V ̇O2max) 在炎热的条件下 (40°C).
- 参与者在炼期间消耗了随意饮用水.
- 测量了液体摄入量,体重损失,出汗率,心率,直肠温度和感知到的感觉.
主要成果:
- 在不同会议中观察到一致的水摄入量 (~1000mL·h-1),体重减轻 (~0.4%),以及出汗率 (~1300mL·h-1).
- 大约80%的流汗损失被随意摄入的水所取代.
- 在会议之间,没有发现液体平衡,心率,直肠温度或感知口渴和热应激的显著差异.
结论:
- 在重复的,相同的运动会中,在炎热的环境中,ad libitum摄入水是高度可重复的.
- 这种饮酒策略确保了持续的液体摄入以及随着时间的推移稳定的生理和感知反应.
- 随意饮酒似乎是一种可靠的方法来管理在炎热环境中长时间炼期间的水分.
相关概念视频
Responses to Heat and Cold Stress
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.
Assessing Body Temperature - Oral
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
Assessing Body Temperature - Rectal
Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Regulation of Water Intake
Osmolality refers to the number of solute particles per kilogram of solvent in a solution. Plasma osmolality specifically indicates the total number of solute particles per kilogram of water in blood plasma. This value reflects the body's hydration status and is tightly regulated through mechanisms controlling water intake and output. While water consumption is a conscious decision, the body has intrinsic regulatory systems to maintain fluid balance. Dehydration, a state of water deficit...
Disorder of Water Balance
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...
Strength and Heat of Hydration
The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...


