Systematic development of a text-driven and a video-driven web-based computer-tailored obesity prevention intervention

BMC Public Health

Hein De Vries¹  Lilian Lechner²  Katja Soetens¹  Anke Oenema¹  Michel Jean Louis Walthouwer¹ 

[1] Department of Health Promotion, Maastricht University, P.O. Box 616, Maastricht 6200MD, The Netherlands;Department of Psychology, Open University of the Netherlands, P.O. Box 2960, Heerlen 6419AT, The Netherlands

关键词: Education level;    Weight management;    Computer-tailoring;    Intervention mapping protocol;    Diet;    Physical activity;    Obesity;   

Others  :  1161644
DOI  :  10.1186/1471-2458-13-978

 received in 2013-08-13, accepted in 2013-10-08,  发布年份 2013

【 摘 要 】

Background

This paper describes the systematic development of a text-driven and a video-driven web-based computer-tailored intervention aimed to prevent obesity among normal weight and overweight adults. We hypothesize that the video-driven intervention will be more effective and appealing for individuals with a low level of education.

Methods and Design

The Intervention Mapping protocol was used to develop the interventions, which have exactly the same educational content but differ in the format in which the information is delivered. One intervention is fully text-based, while in the other intervention in addition to text-based feedback, the core messages are provided by means of videos. The aim of the interventions is to prevent weight gain or achieve modest weight loss by making small changes in dietary intake or physical activity. The content of the interventions is based on the I-Change Model and self-regulation theories and includes behavior change methods such as consciousness raising, tailored feedback on behavior and cognitions, goal setting, action and coping planning, and evaluation of goal pursuit. The interventions consist of six sessions. In the first two sessions, participants will set weight and behavioral change goals and form plans for specific actions to achieve the desired goals. In the remaining four sessions, participants’ will evaluate their progress toward achievement of the behavioral and weight goals. They will also receive personalized feedback on how to deal with difficulties they may encounter, including the opportunity to make coping plans and the possibility to learn from experiences of others. The efficacy and appreciation of the interventions will be examined by means of a three-group randomized controlled trial using a waiting list control group. Measurements will take place at baseline and six and twelve months after baseline. Primary outcome measures are body mass index, physical activity, and dietary intake.

Discussion

The present paper provides insight into how web-based computer-tailored obesity prevention interventions consisting of self-regulation concepts and text-driven and video-driven messages can be developed systematically. The evaluation of the interventions will provide insight into their efficacy and will result in recommendations for future web-based computer-tailored interventions and the additional value of using video tailoring.

Trial registration

NTR3501.

【 授权许可】

   
2013 Walthouwer et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

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