Improving Diet Assessment in Adolescents

改善青少年的饮食评估

• 批准号: 7484113
• 负责人: CAROL J BOUSHEY
• 金额: $ 29.89万
• 依托单位: PURDUE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7484113
• 关键词: Accounting; Address; Adolescent; Age; Agreement; Biological Markers; Calcium; Camping; Canned Foods; Childhood; Clinical; Computer information processing; Computer software; Condition; Controlled Environment; Daily; Databases; Development; Devices; Diet; Dietary intake; Disease regression; Eating; Energy Intake; Energy Metabolism; Environment; Fatty acid glycerol esters; Feedback; Food; Frequencies; Fructose; Goals; Informed Consent; Instruction; Intake; Learning; Life; Link; Measurement; Measures; Memory; Metabolic; Methods; Nitrogen; Nutrient; Obesity; Output; Overweight; Paper; Patient Self-Report; Pattern; Phase; Physical activity; Population; Potassium; Prevention; Proteins; Pus; Questionnaires; Records; Recruitment Activity; Research; Research Personnel; Resolution; Respondent; Rest; Running; Sampling; Standards of Weights and Measures; Sucrose; Target Populations; Techniques; Technology; Testing; Total Sugar; Translating; Uncertainty; United States National Institutes of Health; Week; Weight; Work; attenuation; base; boys; concept; day; digital; experience; food consumption; girls; image processing; improved; innovation; insight; intervention program; novel; novel strategies; programs; prototype; residence; sugar; tool; urinary; usability; ward

DESCRIPTION (provided by applicant): Dietary intake provides some of the most valuable insights for mounting intervention programs for prevention. With the growing concern about adolescent overweight and obesity, the need to accurately measure diet becomes imperative. Assessment among adolescents is problematic as this group has irregular eating patterns and they have less enthusiasm for recording food intake. Preliminary studies among adolescents suggest that innovative use of technology may improve the accuracy of diet information from young people. Recognition of immerging technology in mobile devices, e.g., higher resolution pictures, improved memory capacity, faster processors, allow these devices to process information not previously possible. This project addresses several objectives of PAR-06-104 by refining and testing methods for adolescents and using innovative methods to improve respondent self-report. Our goal is to develop, implement, and evaluate a mobile device food record that will translate to an accurate account of daily food and nutrient intake among adolescents. Our first steps include further development of our prototype mobile device to include digital photographs, a nutrient data base, and image processing for identification and quantification of food consumption. Mobile computing devices provide a unique vehicle for collecting dietary information that reduces burden on record keepers. Pictures of food can be marked with a variety of input methods that link the item for image processing and analysis that estimate the amount of food. Pictures before and after foods are eaten can estimate the amount of food consumed. We plan to recruit a sample of 100 informed and consenting sixth, seventh, eighth, and ninth-graders attending summer camps on the Purdue campus to consume meals of precisely known composition while using the mobile device food record under controlled conditions to aid with quantifying the error associated with the food and nutrient output. Refinements to the tool will reflect the feedback and correction of errors detected with use under the controlled environment. The final phase of the project will validate the mobile device food record among 103 informed and consenting free-living adolescents between 11 and 17 y by using urinary nitrogen and sucrose and fructose as biomarkers of protein intake and sugar intake, respectively. This tool could be used for population and clinical based studies to improve our understanding of dietary exposures among adolescents.

描述（由申请人提供）：膳食摄入量为制定预防干预计划提供了一些最有价值的见解。随着人们对青少年超重和肥胖的日益关注，准确测量饮食的需求变得势在必行。对青少年的评估存在问题，因为这个群体的饮食模式不规律，并且他们对记录食物摄入量的热情较低。对青少年的初步研究表明，技术的创新使用可以提高年轻人饮食信息的准确性。移动设备中的沉浸式技术的认可，例如更高分辨率的图片、改进的内存容量、更快的处理器，使这些设备能够处理以前不可能的信息。该项目通过改进和测试青少年方法并使用创新方法改进受访者的自我报告来实现 PAR-06-104 的几个目标。我们的目标是开发、实施和评估移动设备食物记录，该记录将转化为青少年每日食物和营养摄入量的准确记录。我们的第一步包括进一步开发我们的原型移动设备，包括数码照片、营养数据库以及用于识别和量化食物消耗的图像处理。移动计算设备提供了收集饮食信息的独特工具，从而减轻了记录员的负担。食物的图片可以用多种输入方法进行标记，这些输入方法将项目链接起来进行图像处理和分析，从而估计食物的数量。进食前后的照片可以估计消耗的食物量。我们计划招募 100 名知情并同意的六年级、七年级、八年级和九年级学生作为样本，参加普渡大学校园的夏令营，食用成分精确已知的膳食，同时在受控条件下使用移动设备食物记录来帮助量化与食物和营养输出相关的误差。该工具的改进将反映在受控环境下使用时检测到的错误的反馈和纠正。该项目的最后阶段将分别使用尿氮、蔗糖和果糖作为蛋白质摄入和糖摄入的生物标志物，验证 103 名知情并同意的 11 至 17 岁自由生活青少年的移动设备食物记录。该工具可用于人口和临床研究，以提高我们对青少年饮食暴露的了解。