Lee Ji Eun, Lee Da Eun, Kim Kirang, Shim Jae Eun, Sung Eunju, Kang Jae-Heon, Hwang Ji-Yun
Department of Foodservice Management and Nutrition, Sangmyung University, 20 Hongjimun 2-gil, Jongno-gu, Seoul 03016, Korea.
Department of Food Science and Nutrition, Dankook University, Chungnam 31116, Korea.
Nutr Res Pract. 2017 Jun;11(3):247-256. doi: 10.4162/nrp.2017.11.3.247. Epub 2017 Apr 21.
BACKGROUND/OBJECTIVES: Easy access to intervention and support for certain behaviors is important for obesity prevention and management. The available technology such as smartphone applications can be used for intervention regarding healthy food choices for obesity prevention and management in elementary-school students. The transtheoretical model (TTM) is comprised of stages and processes of change and can be adopted to tailored education for behavioral change. This study aims to develop TTM-based nutrition contents for mobile applications intended to change eating behaviors related to weight gain in young children.
SUBJECTS/METHODS: A synthesized algorithm for tailored nutrition messages was developed according to the intake status of six food groups (vegetables, fruits, sugar-sweetened beverages, fast food and instant food, snacks, and late-night snacks), decision to make dietary behavioral changes, and self-confidence in dietary behavioral changes. The messages in this study were developed from December 2014 to April 2015. After the validity evaluation of the contents through expert consultation, tailored nutrition information messages and educational contents were developed based on the TTM.
Based on the TTM, stages of subjects are determined by their current intake status, decision to make dietary behavioral changes, and self-confidence in dietary behavioral changes. Three versions of tailored nutrition messages at each TTM stage were developed so as to not send the same messages for three weeks at most, and visual materials such as figures and tables were developed to provide additional nutritional information. Finally, 3,276 tailored nutrition messages and 60 nutrition contents for applications were developed.
Smartphone applications may be an innovative medium to deliver interventions for eating behavior changes directly to individuals with favorable cost-effectiveness. In addition, using the TTM for tailored nutrition education for healthy eating is an effective approach.
背景/目的：易于获得针对某些行为的干预措施和支持对于肥胖预防和管理至关重要。诸如智能手机应用程序之类的现有技术可用于干预小学生预防和管理肥胖的健康食物选择。跨理论模型（TTM）由变化阶段和过程组成，可用于为行为改变量身定制教育。本研究旨在为移动应用程序开发基于TTM的营养内容，以改变幼儿与体重增加相关的饮食行为。
对象/方法：根据六类食物（蔬菜、水果、含糖饮料、快餐和即食食品、零食以及夜宵）的摄入状况、做出饮食行为改变的决定以及对饮食行为改变的自信程度，开发了一种定制营养信息的综合算法。本研究中的信息于2014年12月至2015年4月期间制定。在通过专家咨询对内容进行有效性评估后，基于TTM开发了定制的营养信息和教育内容。
基于TTM，根据受试者当前的摄入状况、做出饮食行为改变的决定以及对饮食行为改变的自信程度来确定其所处阶段。在每个TTM阶段开发了三个版本的定制营养信息，以便最多三周内不发送相同的信息，并开发了图表等视觉材料以提供额外的营养信息。最终，开发了3276条定制营养信息和60条应用程序营养内容。
智能手机应用程序可能是一种创新媒介，能够以良好的成本效益直接向个人提供饮食行为改变干预措施。此外，使用TTM进行健康饮食的定制营养教育是一种有效的方法。
