北京某高校学生春季摄水量调查  

Total Water Intake of Healthy Young College Students in Beijing

作　　者：杨婷[1] 付国颖[1] 张莹[1] 倪婧[1] 聂东升[1] 李可基[1] 

机构地区：[1]北京大学医学部公共卫生学院营养与食品卫生学系,北京100191

出　　处：《中国食物与营养》2011年第8期79-82,共4页Food and Nutrition in China

基　　金：国家科技支撑计划资助项目"我国成年人膳食能量代谢及关键技术研究"(项目编号:2008BAI58B01)

摘　　要：目的:评价温和气候下轻体力活动人群的水摄入情况。方法:2010年3-5月,共调查54名集体就餐的健康成年学生,29名男生、25名女生。用称重法结合记录法收集8d的膳食及饮水情况,计算水摄入量及分布状况。同时以日记法记录24h身体活动,测量身高、体重、晨尿比重,记录天气情况。结果:男生日均总水摄入量为2.40±0.58 L.d-1,日均饮水量为1.35±0.50 L.d-1。女生日均总摄水量为2.33±0.56 L.d-1,日均饮水量为1.30±0.56 L.d-1。男女生总摄水量中均有44%为白水、45%来自食物、11%来自饮料。调查日及次日晨尿比重分别为1.021、1.020,前后尿比重变化无统计学差异。结论:在温和气候下,日常饮食和基本正常水合状态下,日均摄水量2.36L,饮水量约1.32L。食物水是供水的重要因素,而白水是最主要的饮品。总水、白水摄入量均与尿比重成负相关。[Objective] To assess dietary water intake of sedentary individuals in moderate weather. [Method] During March to May in 2010, food and fluid intake during 8 days of 54 healthy adult students including 29 male and 25 female were recorded to analyze water content by weighed method （some were self-reported）. Height and body weight were measured. Individuals kept a 24h physical activity diary and collected first morning urine before and after the investigated day to take the Urine Specific Gravity. [Result] Total water intake of 54 students was 2.36＋0.58L. d-~, of which 44% was plain water, 11% from different drinks, and 45 % from food. Drinking volume （including plain water and water in drinks） was 1.32 ~ 0.52L - d ＇. The morning USG before and after the investigated day were of no significant difference （P〉0.05）. [Conclusion] Food was an important source of total dietary water, and plain water was the main daily drink. Intake of total water and plain water had negative correlation with mornin~ USG.

关 键 词：总水摄入量 液体摄入量 春季 北京大学生 

分 类 号：R151[医药卫生—营养与食品卫生学]