Effectiveness of a Video-Versus Text-Based Computer-Tailored Intervention for Obesity Prevention after One Year: A Randomized Controlled Trial

Abstract

Computer-tailored programs may help to prevent overweight and obesity, which are worldwide public health problems. This study investigated (1) the 12-month effectiveness of a video- and text-based computer-tailored intervention on energy intake, physical activity, and body mass index (BMI), and (2) the role of educational level in intervention effects. A randomized controlled trial in The Netherlands was conducted, in which adults were allocated to a video-based condition, text-based condition, or control condition, with baseline, 6 months, and 12 months follow-up. Outcome variables were self-reported BMI, physical activity, and energy intake. Mixed-effects modelling was used to investigate intervention effects and potential interaction effects. Compared to the control group, the video intervention group was effective regarding energy intake after 6 months (least squares means (LSM) difference = −205.40, p = 0.00) and 12 months (LSM difference = −128.14, p = 0.03). Only video intervention resulted in lower average daily energy intake after one year (d = 0.12). Educational role and BMI did not seem to interact with this effect. No intervention effects on BMI and physical activity were found. The video computer-tailored intervention was effective on energy intake after one year. This effect was not dependent on educational levels or BMI categories, suggesting that video tailoring can be effective for a broad range of risk groups and may be preferred over text tailoring.

Effectiveness of a web-based computer-tailored intervention promoting physical activity for adults from Quebec City: a randomized controlled trial

“…Indeed, the findings suggest that the used intervention could be implemented to promote regular MVPA in women and men of all ages with both mid- and high-level education, meeting or not meeting physical activity guidelines. These results are in line with those of Cheung et al ( 2017 ), who highlighted that the effectiveness of a video-delivery tailored intervention on average daily energy intake after one year was not dependent on participants’ educational levels or body mass index.…”

A systematic review of tailored eHealth interventions for weight loss

“…Searches were re-run in March 2018, which led to an additional three articles suitable for full text review. 27–29 Articles were excluded due to relating to wrong outcomes (e.g. cardiovascular risk, BMI), wrong study design (e.g.…”

“…Engagement was explicitly defined in Godino et al. 27 and also in Napolitano et al. 24 Godino et al.…”

Development of interventions for an intelligent and individualized mobile health care system to promote healthy diet and physical activity: using an intervention mapping framework

“…Effective evidence-based methods and strategies which were selected in the above consultation with the MEP were then translated into practical applications by two researchers (YLC and FQW). To reach the goal of individualization of the interventions and aid the translation of the evidence-based methods into practical applications with technological features, we used the computer tailoring method [62] which is increasingly applied to develop effective interventions targeted at changing lifestyles [63, 64]. This method requires: (1) an intervention library; (2) a set of trigger rules based on IF-THEN algorithm; (3) media, for example, a video or cartoon, that delivers the individualized interventions to the specific patient; and (4) a data source [62].…”