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）：饮食摄入量为预防安装干预计划提供了一些最有价值的见解。随着对青少年超重和肥胖症的越来越关注，准确测量饮食的需求必须成为必要。青少年的评估是有问题的，因为该群体的饮食模式不规则，并且对记录食物摄入的热情较少。青少年的初步研究表明，技术的创新使用可以提高年轻人的饮食信息的准确性。识别在移动设备中沉浸技术的识别，例如更高的分辨率图片，改善的存储器能力，更快的处理器，允许这些设备以前无法处理信息。该项目通过精炼和测试青少年的测试方法来解决PAR-06-104的几个目标，并使用创新方法来改善受访者的自我报告。我们的目标是开发，实施和评估移动设备食品记录，该记录将转化为青少年中每日食物和营养摄入量的准确描述。我们的第一步包括进一步开发我们的原型移动设备，包括数字照片，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一种独特的工具，用于收集饮食信息，从而减轻记录员的负担。可以用各种输入方法标记食物图片，这些方法将项目链接为图像处理和分析，以估计食物的量。食用食物前后的图片可以估计食用的食物量。我们计划招募100个知情和同意的样本，以在普渡大学校园参加夏令营的第六，第七，八年级和九年级学生，以消费精确的构图，同时在受控条件下使用移动设备的记录，以帮助量化与食品和营养产量相关的误差。对工具的改进将反映在受控环境下使用使用的错误的反馈和纠正。该项目的最后阶段将通过使用尿液氮，蔗糖和果糖作为蛋白质摄入和糖摄入量的生物标志物，在103个知情和同意的青少年之间验证移动设备食品记录。该工具可用于人群和临床研究，以提高我们对青少年饮食暴露的理解。