Dietary Research Monitoring System

描述（由研究者提供）：该第二阶段项目的目的是进一步开发和评估以网络为中心的Palm程序，以监测饮食摄入量或帮助用户遵循饮食研究人员或营养学家规定的饮食。膳食研究监测系统（DRMS）将利用Palm OS程序记录食物摄入量，然后将其同步到网络，并提供给膳食专业人员进行审查或下载。DRMS还将允许饮食专业人员使用网络界面设置饮食参数。然后，这些饮食参数将提供给手掌用户，以遵循推荐的饮食，并接收关于该饮食依从性的反馈。在第一阶段，开发了数字资源管理系统方案的原型。从饮食研究人员和临床营养学家那里获得了反馈。DRMS在一项小型并行有效性试验中使用平衡交叉设计进行评价。第一阶段的结果表明，DRMS与食物频率问卷和24小时饮食回忆的相关性与食物日记记录的相关性相当。至于第二阶段，我们会根据第一阶段所得的意见，修订和进一步发展档案管理系统。由此产生的产品将由潜在的最终用户进行为期三天的试点评估，并由一组饮食专业人员使用网络界面进行评估。然后将在随机对照试验中对产品进行评估，比较DRMS与食物日记：a）与其他饮食评估措施（例如24小时回忆，食物频率问卷）的相关性和一致性以及对规定饮食的依从程度。将招募150名受试者，并监测一周的食物摄入，然后遵循规定的饮食三周。第二阶段项目的结果将用于开发商业级饮食评估工具，供各种饮食专业人员使用。

DESCRIPTION (provided by investigator): The purpose of this Phase II project is to further develop and evaluate a webcentric Palm program to monitor dietary intake or assist users in following a diet prescribed by a dietary researcher or nutritionist. The Dietary Research Monitoring System (DRMS) will utilize a Palm OS program for food intake recording which is then synced to the web and made available to the dietary professional for review or download. The DRMS also will allow the dietary professional to set dietary parameters to follow using a web interface. These dietary parameters will then be made available to the palm user to follow a recommended diet and receive feedback about compliance to that diet. In Phase I, a prototype of the DRMS program was developed. Feedback was obtained from dietary researchers and clinical nutritionists. The DRMS was evaluated in a small concurrent validity trial using a counterbalanced, crossover design. The results of Phase I showed that the DRMS produced correlations with food frequency questionnaires and 24 hr. dietary recall which were comparable to those found for food diary recording. For Phase II, the DRMS will be revamped and further developed based on the feedback obtained in Phase I. The resulting product will be evaluated by a pilot of potential end users for three days, and by a group of dietary professionals using the web interface. The product will then be evaluated in a randomly controlled trial comparing the DRMS to food diaries on: a) correlations and agreements with other dietary assessment measures (e.g. 24 hr. recall, food frequency questionnaire) and on the degree of compliance to a prescribed diet. One hundred and fifty subjects will be recruited and will monitor food intake for one week, then follow a prescribed diet for three weeks. The results of this Phase II project will be used to develop a commercial grade dietary assessment tool for use by various dietary professionals.