ArticlePreventive medicine reports2016
Support or competition? How online social networks increase physical activity: A randomized controlled trial.
Article in Preventive medicine reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 6 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
70 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- Meta-analysis of randomized controlled trials examining social comparison as a behaviour change technique across the behavioural sciences.Nature human behaviour · 2025Pooled it
- A systematic review of artificial intelligence chatbots for promoting physical activity, healthy diet, and weight loss.The international journal of behavioral nutrition and physical activity · 2021Pooled it
- Behavioural interventions delivered through interactive social media for health behaviour change, health outcomes, and health equity in the adult population.The Cochrane database of systematic reviews · 2021Pooled it
- Behavior Change Techniques Included in Reports of Social Media Interventions for Promoting Health Behaviors in Adults: Content Analysis Within a Systematic Review.Journal of medical Internet research · 2020Pooled it
- Choice architecture interventions to change physical activity and sedentary behavior: a systematic review of effects on intention, behavior and health outcomes during and after intervention.The international journal of behavioral nutrition and physical activity · 2020Pooled it
- Your Personal Motivator is with You: A Systematic Review of Mobile Phone Applications Aiming at Increasing Physical Activity.Sports medicine (Auckland, N.Z.) · 2019Pooled it
- Harnessing technology and gamification to increase adult physical activity: a cluster randomized controlled trial of the Columbia Moves pilot.The international journal of behavioral nutrition and physical activity · 2023Trial
- Randomized Trial for Weight Loss Using a Digital Therapeutic Application.Journal of diabetes science and technology · 2022Trial
- Comparing the effects of text messaging and mobile social networking on physical activity and anthropometric indices of middle-aged women: a randomized controlled trial.BMC women's health · 2022Trial
- Learning to breathe with Tai Chi online - qualitative data from a randomized controlled feasibility study of patients with cystic fibrosis.European journal of integrative medicine · 2020Trial
- Mobile App-Based Small-Group Physical Activity Intervention for Young African American Women: a Pilot Randomized Controlled Trial.Prevention science : the official journal of the Society for Prevention Research · 2019Trial
- Gamifying Accelerometer Use Increases Physical Activity Levels of Sedentary Office Workers.Journal of the American Heart Association · 2018Trial
- Effect of a Game-Based Intervention Designed to Enhance Social Incentives to Increase Physical Activity Among Families: The BE FIT Randomized Clinical Trial.JAMA internal medicine · 2017Trial
- A Group-Based Walking Study to Enhance Physical Activity Among Older Adults: The Role of Social Engagement.Research on agingTrial
- Associations between leaderboard usage in physical activity apps and perceived stress among university students: the roles of social comparison and physical activity.Frontiers in public health · 2026Article
- The influence of social network structures on leisure-time physical activity in hypertensive patients: a mixed-methods study in China.The international journal of behavioral nutrition and physical activity · 2025Article
- "I think office environments aren't really conducive to physical activity": a qualitative interview study with participants of a workplace physical activity programme.BMC public health · 2025Article
- Personalized and adaptive physical activity-based social comparison opportunities for women with health risks: Insights from a real-time test of the identification/contrast model.Journal of health psychology · 2025Article
- Application of Behaviour Change Techniques in Promoting Physical Activity Among Adults with Chronic Conditions: An Umbrella Review.Behavioral sciences (Basel, Switzerland) · 2025Review
- Neural responses to peers moderate conversation-drinking associations in daily life.Scientific reports · 2025Article
10 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
To identify what features of online social networks can increase physical activity, we conducted a 4-arm randomized controlled trial in 2014 in Philadelphia, PA. Students (n = 790, mean age = 25.2) at an university were randomly assigned to one of four conditions composed of either supportive or competitive relationships and either with individual or team incentives for attending exercise classes. The social comparison condition placed participants into 6-person competitive networks with individual incentives. The social support condition placed participants into 6-person teams with team incentives. The combined condition with both supportive and competitive relationships placed participants into 6-person teams, where participants could compare their team's performance to 5 other teams' performances. The control condition only allowed participants to attend classes with individual incentives. Rewards were based on the total number of classes attended by an individual, or the average number of classes attended by the members of a team. The outcome was the number of classes that participants attended. Data were analyzed using multilevel models in 2014. The mean attendance numbers per week were 35.7, 38.5, 20.3, and 16.8 in the social comparison, the combined, the control, and the social support conditions. Attendance numbers were 90% higher in the social comparison and the combined conditions (mean = 1.9, SE = 0.2) in contrast to the two conditions without comparison (mean = 1.0, SE = 0.2) (p = 0.003). Social comparison was more effective for increasing physical activity than social support and its effects did not depend on individual or team incentives.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.