Dietary Research Monitoring System

描述(由研究人员提供)：这一第二阶段项目的目的是进一步开发和评估WebCentrical Palm计划，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。饮食研究监测系统(DRMS)将利用Palm OS程序记录食物摄入量，然后同步到网络上，供饮食专业人员查看或下载。DRMS还将允许饮食专业人员使用Web界面设置要遵循的饮食参数。然后，这些饮食参数将被提供给Palm用户，以遵循推荐的饮食并接收关于遵守该饮食的反馈。在第一阶段，开发了DRMS方案的原型。从饮食研究人员和临床营养学家那里获得反馈。DRMS在一项使用平衡交叉设计的小型同时效度试验中进行了评估。阶段I的结果表明，DRMS与食物频率问卷和24小时产生了相关性。饮食回忆，与食物日记记录中发现的类似。对于第二阶段，将根据在第一阶段获得的反馈对DRMS进行改进和进一步开发，最终产品将由潜在最终用户的试点人员进行为期三天的评估，并由一组使用网络界面的饮食专业人员进行评估。然后将在随机对照试验中对该产品进行评估，将DRMS与食品日记进行比较：a)与其他饮食评估措施(例如24小时)的相关性和一致性。回忆，食物频率问卷)和对规定饮食的遵守程度。150名受试者将被招募，他们将监测食物摄入量一周，然后遵循规定的饮食三周。这一第二阶段项目的结果将被用于开发一种商业级别的膳食评估工具，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.