Integrative Pharmacology and Systems Neurosciences Research Group, Neurosciences Research Program, Hospital del Mar Medical Research Institute (IMIM);
Department of Experimental and Health Sciences, University Pompeu Fabra.
J Vis Exp. 2021 Sep 25(175). doi: 10.3791/62161.
Mobile device-assisted dietary ecological momentary assessments (EMAs) have emerged as a new tool allowing the evaluation of dietary intake in real time, in a real-world setting and in a continuous manner. They have the potential to minimize recall bias, participant, and investigator burden, and decrease economic and time investment while maximizing ecological validity. We developed a set of EMAs aimed at evaluating continuous adherence to the MedDiet. Four multiple-choice EMAs are sent daily in a randomized manner from a total of eight questions. The EMAs enquire about the consumption of 11 key food groups of the Mediterranean diet in the last 24-48 h in a semi-quantitative way. EMAs capture the daily frequency of consumption of fruits, vegetables, and extra virgin olive oil on different days of the week. Additionally, EMAs capture the weekly frequency of consumption of whole grain products, sugary drinks, nuts, legumes, sweets, fish and seafood, and red and processed meats. A designed scoring system behind the EMAs extracts the percentage of adherence to the MedDiet recommendations and calculates a quality index of the diet every week. Individualized reports are sent periodically to the volunteers highlighting the strengths and weaknesses of their diet. EMAs are also expected to have a behavioral effect, reinforcing the choice of Mediterranean foods.
移动设备辅助饮食生态瞬时评估（EMA）已成为一种新工具，可以实时、在真实环境中、连续地评估饮食摄入情况。它们有潜力最大限度地减少回忆偏差、参与者和研究者负担，降低经济和时间投入，同时最大限度地提高生态有效性。我们开发了一系列旨在评估连续坚持地中海饮食的 EMA。每天会以随机的方式从总共 8 个问题中发送 4 个多项选择 EMA。EMA 以半定量的方式询问过去 24-48 小时内 11 种地中海饮食关键食物组的消费情况。EMA 捕捉不同日子里水果、蔬菜和特级初榨橄榄油的日常消费频率。此外，EMA 还捕捉全谷物产品、含糖饮料、坚果、豆类、甜食、鱼和海鲜以及红色和加工肉类的每周消费频率。EMA 背后的设计评分系统提取了对地中海饮食建议的遵守程度的百分比，并每周计算饮食的质量指数。定期向志愿者发送个性化报告，突出其饮食的优缺点。EMA 也有望产生行为效果，强化对地中海食物的选择。
