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Do smartphone applications and activity trackers increase physical activity in adults? Systematic review, meta-analysis and metaregression
Open accessAbstract
Objective: To determine the effectiveness of physical activity interventions involving mobile applications (apps) or trackers with automated and continuous self-monitoring and feedback. Design: Systematic review and meta-analysis. Data sources: PubMed and seven additional databases, from 2007 to 2020. Study selection: Randomised controlled trials in adults (18–65 years old) without chronic illness, testing a mobile app or an activity tracker, with any comparison, where the main outcome was a physical activity measure. Independent screening was conducted. Data extraction and synthesis: We conducted random effects meta-analysis and all effect sizes were transformed into standardised difference in means (SDM). We conducted exploratory metaregression with continuous and discrete moderators identified as statistically significant in subgroup analyses. Main outcome measures: Physical activity: daily step counts, min/week of moderate-to-vigorous physical activity, weekly days exercised, min/week of total physical activity, metabolic equivalents. Results: Thirty-five studies met inclusion criteria and 28 were included in the meta-analysis (n=7454 participants, 28% women). The meta-analysis showed a small-to-moderate positive effect on physical activity measures (SDM 0.350, 95% CI 0.236 to 0.465, I 2 =69%, T 2 =0.051) corresponding to 1850 steps per day (95% CI 1247 to 2457). Interventions including text-messaging and personalisation features were significantly more effective in subgroup analyses and metaregression. Conclusion: Interventions using apps or trackers seem to be effective in promoting physical activity. Longer studies are needed to assess the impact of different intervention components on long-term engagement and effectiveness.
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“Several systematic reviews and meta-analyses [15–19] have shown that these digital technology-based programs resulted in increased PA and reduced body weight, at least for a short duration.”
From A systematic review of artificial intelligence chatbots for promoting physical activity, healthy diet, and weight loss (2021) · cites this paper as [19]
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“A meta-analysis by Laranjo et al. (21) found that digital feedback combined with personalized goal setting enhanced intervention effectiveness across diverse populations.”
Zhu, Y., Zhu, Z., Wang, H., Cao, S., Shan, C., & Yuan, X. (2026) · Frontiers in Public Health · doi:10.3389/fpubh.2026.1910792 · Cited by 1
Hamdani, N., Saragiotto, B. T., Stubbs, P. W., Oliveira, J., Tiedemann, A., Sherrington, C., Santana, P., Ferretti, G. M., Verhagen, A. P., & Mehta, P. (2026) · The Journal of Frailty & Aging · doi:10.1016/j.tjfa.2026.100180
“…have examined activity trackers in older adults [1,35 – 39] and on mixed-age populations [29,30, 40] most included individuals 60 years, healthy populations, or mixed populations (healthy and diseased) limiting the generalisability to people with underlying health conditions [1,29,30,35,40 – 45].”
Zhu, Q., Tu, Y., Li, X., & Chang, P. (2026) · Behavioral Sciences · doi:10.3390/bs16091645
“The evidence base for digital tools that do move activity is built on interventions defined by automated self-monitoring and feedback (Ferguson et al., 2022; Laranjo et al., 2021).”
InfluentialLü, Y., Shu-rui, L., & Li, D. (2026) · Journal of Teaching in Physical Education · doi:10.1123/jtpe.2025-0376
Active Aging Through ICT—Current Opportunities and Challenges
Jungreitmayr, S. (2026) · Springer eBooks · doi:10.1007/978-3-662-73013-3_11
Lee, A., Zhang, H., & Rhodes, R. E. (2026) · Health Psychology Review · doi:10.1080/17437199.2026.2735273
Prescribing Exercise as a Lifestyle Intervention
Karatzaferi, C., Osório, T. G., Conde, J., Arosa, L., Roditi, E.-E., & Sakkas, G. K. (2026) · Advances in predictive, preventive and personalised medicine · doi:10.1007/978-3-032-32838-0_11
Shang, Z., Zhao, Z., Zheng, X., Zhao, F., Ma, Y., Liu, Z., & Zhou, K. (2026) · Frontiers in Physiology · doi:10.3389/fphys.2026.1926054
“Previous systematic reviews suggest that mobile apps and activity trackers may support physical activity participation, and features such as reminders, self-monitoring, and personalized feedback may contribute to user engagement and adherence (Szinay et al., 2020; Laranjo et al., 2021).”
Li, X., Jiang, Y., Wang, Y., Wang, Y., & Liu, Y. (2026) · Frontiers in Public Health · doi:10.3389/fpubh.2026.1945553
“By contrast, interventions that combine digital monitoring with additional elements such as explicit behavioural goals, incentives, coaching or social support have sometimes produced more favourable outcomes (12, 25, 26).”
InfluentialGoldman, D., Kortowich, L., & Nagra, M. (2026) · American Journal of Lifestyle Medicine · doi:10.1177/15598276261496228
“21 Phones are not always carried, so they can undercount steps in free-living conditions, 33 but encouraging patients to use the step-counting features of a device they already own may achieve broader uptake than recommending the purchase of a new device, particularly among older and lower-income…”
Rukavina, A.-M. J., & Pongračić, L. (2026) · Baltic Journal of Sport and Health Sciences · doi:10.33607/bjshs.v2i143.2360
Exercise Prescriptions for Cardiovascular Health in Adults: 2026 ACC Scientific Statement
MYERS, J. N., Beckie, T. M., Chastin, S., Fleg, J. L., Kitzman, D. W., Thompson, P. D., & Wasfy, M. M. (2026) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2026.09.008
Juskowiak, J., Komin, Z. J., Liasota, M., Kabat, E. Z., Kozłowska, M. J., Konopka, K., Majchrzak, M. K., Kołodziej, F. M., Kwiatkowska, A., & Lis, M. (2026) · International Journal of Innovative Technologies in Social Science · doi:10.31435/ijitss.4(52).2026.6394
Steps to Better Health: An Everyday Guide to Walking
Webber, B. J. (2026) · American Journal of Lifestyle Medicine · doi:10.1177/15598276261488034
Zhang, Q., Du, Y., & Li, Y. (2026) · Acta Psychologica · doi:10.1016/j.actpsy.2026.107999
Metadata
- Authors
- Laranjo, L., Ding, D., Heleno, B., Kocaballi, B., Quiroz, J. C., Tong, H. L., Chahwan, B., Neves, A. L., Gabarron, E., Dao, K. P., Rodrigues, D., Neves, G. C., Antunes, M. L., Coiera, E., & Bates, D. W.
- Affiliations
- The University of Sydney (AU)
- Universidade Nova de Lisboa (PT)
- UNSW Sydney (AU)
- Macquarie University (AU)
- Brigham and Women's Hospital (US)
- Corresponding author
- Laranjo, Liliana
- ORCID
- Venue
- British Journal of Sports Medicine
- Publisher
- BMJ
- Published
- 2020-12-21
- Volume
- 55
- Issue
- 8
- Pages
- 422-432
- ISSN
- 0306-3674 (ISSN-L)
- 1473-0480
- OpenAlex
- W3113845499
- Cited by
- 400
- References
- 91
- Citations by year
- 2026: 55 · 2025: 80 · 2024: 102 · 2023: 54 · 2022: 75 · 2021: 34
- FWCI
- 7.77
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- British Journal of Sports Medicine (publishedVersion)
- PubMed (publishedVersion)
- Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, cc-by-nc-nd)
- Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, other-oa)
- Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, cc-by)
- Repository of Digital Objects for Teaching Research and Culture (University of Valencia) (submittedVersion, other-oa)
- Zenodo (CERN European Organization for Nuclear Research) (cc-by)
- Funders
- National Health and Medical Research Council (APP1134919)
- Topics
- Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Physical Activity and Health
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
- Keywords
- mobile health apps, wearable activity trackers, physical activity promotion, self-monitoring, feedback, step count, moderate-to-vigorous physical activity, text messaging, personalization, adults
- MeSH terms
- Smartphone, Fitness Trackers, Adult, Feedback, Humans, Regression Analysis, Health Behavior, Exercise, Mobile Applications
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