Are web-based personally tailored physical activity videos more effective than personally tailored text-based interventions? Results from the three-arm randomised controlled TaylorActive trial
Open accessAbstract
Objectives: Some online, personally tailored, text-based physical activity interventions have proven effective. However, people tend to ‘skim’ and ‘scan’ web-based text rather than thoroughly read their contents. In contrast, online videos are more engaging and popular. We examined whether web-based personally tailored physical activity videos were more effective in promoting physical activity than personally tailored text and generic information. Methods: 501 adults were randomised into a video-tailored intervention, text-tailored intervention or control. Over a 3-month period, intervention groups received access to eight sessions of web-based personally tailored physical activity advice. Only the delivery method differed between intervention groups: tailored video versus tailored text. The primary outcome was 7-day ActiGraph-GT3X+ measured moderate-to-vigorous physical activity (MVPA) assessed at 0, 3 and 9 months. Secondary outcomes included self-reported MVPA and website engagement. Differences were examined using generalised linear mixed models with intention-to-treat and multiple imputation. Results: Accelerometer-assessed MVPA increased 23% in the control (1.23 (1.06, 1.43)), 12% in the text-tailored (1.12 (0.95, 1.32)) and 28% in the video-tailored (1.28 (1.06, 1.53)) groups at the 3-month follow-up only, though there were no significant between-group differences. Both text-tailored (1.77 (1.37, 2.28]) and video-tailored (1.37 (1.04, 1.79)) groups significantly increased self-reported MVPA more than the control group at 3 months only, but there were no differences between video-tailored and text-tailored groups. The video-tailored group spent significantly more time on the website compared with text-tailored participants (90 vs 77 min, p=0.02). Conclusions: The personally tailored videos were not more effective than personally tailored text in increasing MVPA. The findings from this study conflict with pilot study outcomes and previous literature. Process evaluation and mediation analyses will provide further insights. Trial registration number: ACTRN12615000057583
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The differences between self-reported and objectively measured physical activity are likely due to recall and social desirability bias.
“The differences between self-reported and objectively measured physical activity are likely due to recall and social desirability bias [31].”
From Feasibility, Usability, and Effectiveness of a Machine Learning–Based Physical Activity Chatbot: Quasi-Experimental Study (2021) · cites this paper as [31]
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- Authors
- Vandelanotte, C., Short, C. E., Plotnikoff, R. C., Rebar, A., Alley, S., Schoeppe, S., Canoy, D. F., Hooker, C., Power, D., Oldmeadow, C., Leigh, L., To, Q., Mummery, W. K., & Duncan, M. J.
- Affiliations
- Central Queensland University (AU)
- The University of Melbourne (AU)
- University of Newcastle Australia (AU)
- Hunter Medical Research Institute (AU)
- University of Alberta (CA)
- Corresponding author
- Vandelanotte, Corneel
- ORCID
- Venue
- British Journal of Sports Medicine
- Publisher
- BMJ
- Published
- 2020-11-03
- Volume
- 55
- Issue
- 6
- Pages
- 336-343
- ISSN
- 0306-3674 (ISSN-L)
- 1473-0480
- OpenAlex
- W3097208913
- Cited by
- 31
- References
- 45
- Citations by year
- 2026: 2 · 2025: 5 · 2024: 3 · 2023: 6 · 2022: 7 · 2021: 7
- FWCI
- 3.01
- Type
- journal article
- Language
- en
- Open access
- green
- figshare.com
- Licence
- cc-by
- Locations
- British Journal of Sports Medicine (publishedVersion)
- PubMed (publishedVersion)
- Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
- Figshare (submittedVersion, cc-by)
- Figshare (submittedVersion)
- NOVA (University of Newcastle Australia) (submittedVersion)
- Funders
- National Health and Medical Research Council (1049369, 1090517, 1100138, 1105926, 1125586, 1141606)
- National Heart Foundation of Australia (100029, 100427, 101240, 102609)
- Topics
- Health Sciences › Medicine › Physiology › Physical Activity and Health
- Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
- Social Sciences › Psychology › Applied Psychology › Behavioral Health and Interventions
- Keywords
- physical activity promotion, personalized interventions, text-based interventions, moderate-to-vigorous physical activity, online health interventions, website engagement
- MeSH terms
- Adolescent, Adult, Aged, Female, Health Promotion, Humans, Male, Middle Aged, Time Factors, Video Recording, Exercise, Internet, Young Adult
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