Abstract The objective of this cross-sectional study was to evaluate the hydration status of Czech First League soccer players, and to compare the reported fluid intake, perceived fluid intake and thirst sensation of euhydrated (EU) and dehydrated (DE) players. The study involved 124 Czech male professional soccer players (age 25.2±5.0 years) participating in annual winter, pre-season laboratory testing. Hydration status was assessed based on urine specific gravity (USG), euhydration was set at USG≤1.020. Fluid intake and thirst perception were evaluated by a questionnaire. The sample mean for USG was 1.021±0.008, 56% of players were dehydrated. Reported daily fluid intake was significantly (p<0.001, d=0.95, large effect) higher in EU compared to DE players. Daily fluid intake negatively correlated with USG (rS=-0.46, p<0.001, medium effect). The fluid intake perception score was significantly (p=0.005, d=0.54, medium effect) better in EU compared to DE players. Reported intake perception scores negatively correlated with USG (rS=-0.32, p<0.001, medium effect). However, there was no correlation (rS=-0.09, p=0.34, trivial effect) between thirst perception scores and USG. Thirst perception scores were not significantly different between EU and DE players (p=0.35, d=0.18, trivial effect). Our results indicated that self-assessment of both daily fluid intake and perceived fluid intake matched with objective hydration status, while self-assessment of thirst perception was not an appropriate indicator of hydration status in elite soccer players.

中文翻译：

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捷克甲级联赛足球运动员的脱水患病率及其与液体摄入量和水合状态自我评估的关系

摘要 这项横断面研究的目的是评估捷克甲级联赛足球运动员的水合状态，并比较报告的液体摄入量、感知液体摄入量和脱水 (EU) 和脱水 (DE) 球员的口渴感。该研究涉及 124 名捷克男性职业足球运动员（年龄 25.2±5.0 岁）参加每年的冬季、季前实验室测试。根据尿比重（USG）评估水合状态，水合状态设定为USG≤1.020。通过问卷评估液体摄入量和口渴感觉。USG 的样本平均值为 1.021±0.008，56% 的球员脱水。与德国球员相比，欧盟报告的每日液体摄入量显着（p<0.001，d=0.95，大效应）更高。每日液体摄入量与 USG 呈负相关（rS=-0.46，p<0.001，中等效果）。与德国球员相比，欧盟的液体摄入感知评分显着（p=0.005，d=0.54，中等效果）更好。报告的摄入量感知分数与 USG 呈负相关（rS=-0.32，p<0.001，中等效应）。然而，口渴感知评分和 USG 之间没有相关性（rS=-0.09，p=0.34，微不足道的影响）。欧盟和德国玩家之间的口渴感知分数没有显着差异（p = 0.35，d = 0.18，微不足道的影响）。我们的结果表明，对每日液体摄入量和感知液体摄入量的自我评估与客观水合状态相匹配，而对口渴感知的自我评估并不是精英足球运动员水合状态的适当指标。中等效果）与DE玩家相比，在欧盟更好。报告的摄入量感知分数与 USG 呈负相关（rS=-0.32，p<0.001，中等效应）。然而，口渴感知评分和 USG 之间没有相关性（rS=-0.09，p=0.34，微不足道的影响）。欧盟和德国玩家之间的口渴感知分数没有显着差异（p = 0.35，d = 0.18，微不足道的影响）。我们的结果表明，对每日液体摄入量和感知液体摄入量的自我评估与客观水合状态相匹配，而对口渴感知的自我评估并不是精英足球运动员水合状态的适当指标。中等效果）与DE玩家相比，在欧盟更好。报告的摄入量感知分数与 USG 呈负相关（rS=-0.32，p<0.001，中等效应）。然而，口渴感知评分和 USG 之间没有相关性（rS=-0.09，p=0.34，微不足道的影响）。欧盟和德国玩家之间的口渴感知分数没有显着差异（p = 0.35，d = 0.18，微不足道的影响）。我们的结果表明，对每日液体摄入量和感知液体摄入量的自我评估与客观水合状态相匹配，而对口渴感知的自我评估并不是精英足球运动员水合状态的适当指标。口渴感知分数和USG之间的微不足道的影响。欧盟和德国玩家之间的口渴感知分数没有显着差异（p = 0.35，d = 0.18，微不足道的影响）。我们的结果表明，对每日液体摄入量和感知液体摄入量的自我评估与客观水合状态相匹配，而对口渴感知的自我评估并不是精英足球运动员水合状态的适当指标。口渴感知分数和USG之间的微不足道的影响。欧盟和德国玩家之间的口渴感知分数没有显着差异（p = 0.35，d = 0.18，微不足道的影响）。我们的结果表明，对每日液体摄入量和感知液体摄入量的自我评估与客观水合状态相匹配，而对口渴感知的自我评估并不是精英足球运动员水合状态的适当指标。