Study: Why drinking icy water is important?
According to a new report, temperature of water consumed might be as important as the amount, when you are trying to manage your thermoregulation.
University of Montana conducted a study to demonstrate the unique relationship between fluid volume and fluid temperature during arduous work in the heat.
It was found that icy water was as effective as ambient water even when consumed in half the amount.
“While the common approach to managing health in hot environments centers around maintaining hydration, limited attention is devoted to managing heat production from hard work or play,” said lead investigator Brent C. Ruby.
“It should be obvious that as the temperature rises, so does the body’s need for proper fluid intake patterns. This ensures that blood and sweat volume can be maintained to continually enable heat loss through evaporative cooling (good old fashioned sweating). However, coaches, trainers, clinicians, medics, and safety officers continually emphasize the importance of proper hydration without providing sound guidance and attention to proper management of heat production from the working muscle,” Ruby added.
Existing records show that liquids need to be consumed to avoid more than an acute 2 percent body mass loss, which is known to hinder performance and increase the risk of heat-related injury. Right now, the acknowledged least hydration rate is 2 grams of water for every kilogram of body mass. Be that as it may, discussion encompasses the connection between slips in hydration status and the hazards for heat related injury.
Although these guidelines indicate how water should be consumed, there has been no existing recommendation on the optimum temperature at which water should be consumed.
In order to understand how the temperature of water affects the human body, investigators had subjects exercise in 88° F air temperature, with 50 percent relative humidity for three hours.
“While these guidelines serve as just that, ‘guidelines,’ constant access to body weight scales for repeated measures of nude body weight is impractical for nearly all sport or occupational settings. Reducing the emphasis on fluid volume, allowing cold fluid access, and emphasizing the need to rest adequately during the training session or workshift should become common practice,” said the researcher.
The study indicates that individuals working in high heat conditions might have the capacity to carry and drink less water in the event that they can keep it ice cold.
“Military training and operations, wildland fire suppression, and varied athletic/recreational pursuits require people to work or exercise in hot environments for extended periods of time. These activities also mandate the self-transport or frequent resupply of fluid to sustain performance for the duration of the work shift or event,” said Ruby.
“For these individuals the weight of fluid that must be carried increases the metabolic demand and subsequent heat production, posing hindrances to completing the job or event,” she added.
With rising global temperatures, it is necessary for people to find effective ways to manage heat stress and remain safe in all conditions.
“Individuals working in hot environments should be mindful of both the volume and temperature of the fluid they consume,” concluded the scientist.
“Further research should be done to determine impact that exchanging fluid temperature for fluid volume has on exercise performance.”
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