The relationship between water intake, hydration biomarkers and physical activity of young male athletes in Beijing, China: A cross-sectional study.

IF 1.3 4区 医学 Q4 NUTRITION & DIETETICS Asia Pacific journal of clinical nutrition Pub Date : 2023-01-01 DOI:10.6133/apjcn.202303_32(1).0018
Xing Wang, Na Zhang, Jianfen Zhang, Yibin Li, Yi Yan, Guansheng Ma
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Abstract

Background and objectives: To explore the relationship between water intake, hydration biomarkers and physical activity of young male athletes.

Methods and study design: A 7-day cross-sectional study was conducted among 45 male athletes aged 18-25 years in Beijing, China. Total drinking fluids (TDF) was obtained using 7-day 24-h fluid intake questionnaire. Water from food (WFF) was assessed using the methods of food weighing, duplicate portion method and laboratory analysis. Physical activity was evaluated using physical activity energy expenditure (PAEE) and metabolic equivalent of task (MET).

Results: Totally, 42 participants completed the study. The medians of total water intake (TWI), TDF and WFF of participants were 2771 mL, 1653 mL and 1088 mL respectively. Jonckheere-Terpstra test showed a significant increase trend toward higher TWI and TDF with higher PAEE level (Z=2.414, p=0.016; Z=2.425, p=0.015). Spearman's rank correlation showed that TWI was positively correlated with PAEE (rs=0.397, p=0.009). TDF showed a positive correlation with PAEE and MET (rs=0.392, p=0.010; rs=0.315, p=0.042). The median urine volume was 840 mL, urine specific gravity was 1.020, and 24-h urine osmolality was 809 mOsm/kg. Significant differences were found in plasma cortisol among the four MET groups (χ2=8.180; p=0.042).

Conclusions: Young male athletes with higher physical activity level had higher amounts of TWI and TDF than their counterparts but had similar hydration biomarkers. There was a high incidence of dehydration in athletes, and attentions need to be paid on the intake of TDF among them to maintain the optimal hydration status.

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中国北京年轻男性运动员饮水量、水合生物标志物与身体活动的关系:一项横断面研究。
背景与目的:探讨年轻男性运动员饮水量、水合生物标志物与身体活动的关系。方法和研究设计:对中国北京45名年龄在18-25岁的男性运动员进行了为期7天的横断面研究。总饮水量(TDF)采用7天24小时饮水量问卷。采用食品称量法、重复份数法和实验室分析法对食物水进行了评价。使用体力活动能量消耗(PAEE)和任务代谢当量(MET)评估体力活动。结果:共有42名参与者完成了研究。总饮水量(TWI)、总饮水量(TDF)和总饮水量(WFF)的中位数分别为2771 mL、1653 mL和1088 mL。Jonckheere-Terpstra检验显示,随着PAEE水平的提高,TWI和TDF呈显著增加趋势(Z=2.414, p=0.016;Z = 2.425, p = 0.015)。Spearman秩相关显示TWI与PAEE呈正相关(rs=0.397, p=0.009)。TDF与PAEE、MET呈正相关(rs=0.392, p=0.010;rs = 0.315, p = 0.042)。中位尿量840 mL,尿比重1.020,24小时尿渗透压809 mOsm/kg。四组患者血浆皮质醇水平差异有统计学意义(χ2=8.180;p = 0.042)。结论:体力活动水平较高的年轻男性运动员TWI和TDF含量高于同龄人,但水合生物标志物相似。运动员脱水的发生率较高,需要注意其中TDF的摄入,以保持最佳的补水状态。
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来源期刊
CiteScore
2.50
自引率
7.70%
发文量
58
审稿时长
6-12 weeks
期刊介绍: The aims of the Asia Pacific Journal of Clinical Nutrition (APJCN) are to publish high quality clinical nutrition relevant research findings which can build the capacity of clinical nutritionists in the region and enhance the practice of human nutrition and related disciplines for health promotion and disease prevention. APJCN will publish original research reports, reviews, short communications and case reports. News, book reviews and other items will also be included. The acceptance criteria for all papers are the quality and originality of the research and its significance to our readership. Except where otherwise stated, manuscripts are peer-reviewed by at least two anonymous reviewers and the Editor. The Editorial Board reserves the right to refuse any material for publication and advises that authors should retain copies of submitted manuscripts and correspondence as material cannot be returned. Final acceptance or rejection rests with the Editorial Board
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