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Study on the Differences in the Thirst-Quenching Effects of Different Beverages Supplemented Before Exercise: A Randomized Crossover Trial

文献类型： 外文期刊

作者： Jieying Gao;Yuchen Wang;Xiao Ren;Ying Nie;Yanmi Li;Yimin Zhang;Shuxian Huang;Dazhou Zhu

作者机构：

关键词： beverages;fluid intake;hydration

期刊名称： Nutrients

ISSN： 2072-6643

年卷期： 2025 年 17 卷 5 期

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收录情况： SCIE（2025版）

摘要： Background/Objectives: Different beverages may vary in their effectiveness at quenching thirst. This study aims to explore the impact of pre-exercise consumption of different types of beverages on thirst relief, providing scientific evidence to guide the selection of the most suitable beverage type. Methods: A randomized crossover design was used, recruiting 13 healthy male college students as participants. Each participant completed five exercise trials, with a 7-day interval between trials. In random order, participants consumed 6 mL/kg body weight of water, carbonated beverage, juice, electrolyte drink, or tea before exercise in each trial. Blood, saliva, and urine samples were collected before and after exercise; body weight was measured, and thirst sensation was recorded. Results: Body weight significantly decreased in all groups post-exercise (p < 0.05), with no significant differences between the beverage groups (p > 0.05). Post-exercise, serum Na+ concentrations significantly decreased in all beverage groups, with the electrolyte drink group showing a significantly different change compared to the other groups (p < 0.05). Serum K+ concentrations significantly increased post-exercise only in the electrolyte drink group (p < 0.05). No consistent trend was observed in the changes in serum Ca2+ concentrations before and after exercise. Serum Cl− concentrations post-exercise were significantly lower than pre-exercise in all groups except the electrolyte drink group (Group E) (p < 0.05). All five hydration protocols resulted in a decrease in plasma volume. There was no consistent pattern in the changes in urine osmolality before and after exercise. Salivary osmolality significantly increased post-exercise in all groups (p < 0.05). In terms of subjective thirst, the water supplementation group had the highest score. Conclusions: This study indicates that electrolyte drinks are more effective in maintaining physiological balance, while water is most effective in alleviating subjective thirst. The impact of different beverages on subjective thirst did not fully align with changes in physiological markers, suggesting that future research should comprehensively evaluate the relationship between subjective sensations and physiological changes.

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