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Effectiveness of a video-versus text-based computer-tailored intervention for obesity prevention after one year: A randomized controlled trial
Cheung,Kei Long Schwabe,I. Walthouwer,Michel Oenema,Anke Lechner,Lilian De Vries,Hein
Cheung,Kei Long
Schwabe,I.
Walthouwer,Michel
Oenema,Anke
Lechner,Lilian
De Vries,Hein
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.
Description
Date
2017
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Publisher
Research Projects
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Keywords
SDG 3 - Good Health and Well-being
Citation
Cheung, K L, Schwabe, I, Walthouwer, M, Oenema, A, Lechner, L & De Vries, H 2017, 'Effectiveness of a video-versus text-based computer-tailored intervention for obesity prevention after one year : A randomized controlled trial', International Journal of Environmental Research and Public Health, vol. 14, no. 10, 1275. https://doi.org/10.3390/ijerph14101275