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

Area of Science:

• Health behavior change
• Digital health interventions
• Obesity prevention

Background:

• Systematic development of web-based computer-tailored interventions for obesity prevention.
• Two formats: text-driven and video-driven, with identical educational content.
• Hypothesis: video-driven intervention is more effective for individuals with lower education levels.

Purpose of the Study:

• To systematically develop and evaluate text- and video-driven web-based computer-tailored interventions for obesity prevention.
• To compare the efficacy and appeal of text- versus video-based delivery formats.
• To provide recommendations for future digital health interventions in obesity prevention.

Main Methods:

• Intervention Mapping protocol used for systematic development.
• Interventions based on the I-Change Model and self-regulation theories.
• Six-session program with goal setting, action planning, and progress evaluation.
• Three-group randomized controlled trial with measurements at baseline, 6, and 12 months.
• Primary outcomes: body mass index, physical activity, and dietary intake.

Main Results:

• (Study results not yet available in the abstract)

Conclusions:

• Systematic development of text- and video-driven obesity prevention interventions using self-regulation concepts.
• Evaluation will provide insights into efficacy and the added value of video tailoring.
• Recommendations for future web-based computer-tailored interventions will be generated.