Yasutake Kenichiro, Sawano Kayoko, Yamaguchi Shoko, Sakai Hiroko, Amadera Hatsumi, Tsuchihashi Takuya
Department of Health and Nutrition Science, Faculty of Health and Social Welfare Sciences, Nishikyushu University, Kanzaki;
Exp Ther Med. 2011 Jul;2(4):615-618. doi: 10.3892/etm.2011.265. Epub 2011 May 12.
This study aimed to examine the usefulness of the self-monitoring of urinary salt excretion for educating individuals about the risk of excessive dietary salt intake. The subjects were 30 volunteers (15 men and 15 women) not consuming anti-hypertensive medication. The subjects measured urinary salt excretion at home for 4 weeks using a self-monitoring device. Blood pressure (BP), anthropometric variables and nutritional variables (by a dietary-habits questionnaire) were measured before and after the measurement of urinary salt excretion. Statistical analyses were performed, including paired t-tests, Chi-square test, Pearson's product moment correlation coefficient and multiple linear regression analysis. In all subjects, the average urinary salt excretion over 4 weeks was 8.05±1.61 g/day and the range (maximum-minimum value) was 5.58±2.15 g/day. Salt excretion decreased significantly in weeks 3 and 4 (P<0.05 and P<0.01, respectively). Diastolic BP decreased from 77.7±14.3 (at baseline) to 74.3±13.3 after 4 weeks (P<0.05), while systolic BP and anthropometric variables remained unchanged. Nutrition surveys indicated that energy intake was correlated with salt intake both before and after the measurements; changes in both variables during the observation period were correlated (r=0.40, P<0.05). The percentage of subjects who were aware of the restriction in dietary salt intake increased from 47 to 90%. In conclusion, daily monitoring of the amount of urinary salt excretion using a self-monitoring device appears to be an effective educational tool for improving the quality of life of healthy adults.
本研究旨在检验尿盐排泄自我监测对于向个体传授高盐饮食风险相关知识的有用性。研究对象为30名未服用抗高血压药物的志愿者（15名男性和15名女性）。这些研究对象使用自我监测设备在家中测量尿盐排泄量，为期4周。在测量尿盐排泄量之前和之后，测量血压（BP）、人体测量学变量和营养变量（通过饮食习惯问卷）。进行了统计分析，包括配对t检验、卡方检验、皮尔逊积矩相关系数和多元线性回归分析。在所有研究对象中，4周内尿盐排泄的平均量为8.05±1.61克/天，范围（最大值 - 最小值）为5.58±2.15克/天。盐排泄量在第3周和第4周显著下降（分别为P<0.05和P<0.01）。舒张压从77.7±14.3（基线时）降至4周后的74.3±13.3（P<0.05），而收缩压和人体测量学变量保持不变。营养调查表明，能量摄入在测量前后均与盐摄入相关；观察期内这两个变量的变化具有相关性（r = 0.40，P<0.05）。知晓饮食中盐摄入量限制的研究对象比例从47%增至90%。总之，使用自我监测设备每日监测尿盐排泄量似乎是一种有效的教育工具，可用于改善健康成年人的生活质量。
