ArticleObesity (Silver Spring, Md.)2012
Teammates and social influence affect weight loss outcomes in a team-based weight loss competition.
Article in Obesity (Silver Spring, Md.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 4 of them syntheses that pooled it.
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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.
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Who cites it
47 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Sustainability of Weight Loss Through Smartphone Apps: Systematic Review and Meta-analysis on Anthropometric, Metabolic, and Dietary Outcomes.Journal of medical Internet research · 2022Pooled 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
- Peer-Based Social Media Features in Behavior Change Interventions: Systematic Review.Journal of medical Internet research · 2018Pooled it
- Self-Regulation and Wellbeing When Facing a Blocked Parenthood Goal: A Systematic Review and Meta-Analysis.PloS one · 2016Pooled it
- Social Network Analysis of the Effects of a Social Media-Based Weight Loss Intervention Targeting Adults of Low Socioeconomic Status: Single-Arm Intervention Trial.Journal of medical Internet research · 2021Trial
- The impact of the interventionist-participant relationship on treatment adherence and weight loss.Translational behavioral medicine · 2019Trial
- Face-to-Face and Online Networks: College Students' Experiences in a Weight-Loss Trial.Journal of health communication · 2017Trial
- Feasibility of Behavioral Weight Loss Treatment Enhanced with Peer Support and Mobile Health Technology for Individuals with Serious Mental Illness.The Psychiatric quarterly · 2016Trial
- Examining social influence on participation and outcomes among a network of behavioral weight-loss intervention enrollees.Journal of obesity · 2013Trial
- International Society of Sports Nutrition position stand: diets for body weight reduction.Journal of the International Society of Sports Nutrition · 2026Review
- Evaluation of Mobile Intermittent Fasting Applications in Chinese App Stores: Quality Evaluations and Content Analysis.JMIR mHealth and uHealth · 2025Article
- Social network enhanced behavioral interventions for diabetes and obesity: A 3 arm randomized trial with 2 years follow-up in Jordan.PLOS global public health · 2024Article
- Dyadic Peer Support to Improve Diet and Physical Activity Among African American Church Members: An Exploratory Study.Journal of religion and health · 2023Article
- Social comparisons between group members during behavioural weight loss treatment: comparison direction, scale, and associations with weight loss maintenance.Psychology & health · 2023Article
- Team characteristics associated with weight loss in a First Nations community intervention: An observational study.Health promotion journal of Australia : official journal of Australian Association of Health Promotion Professionals · 2023Observational
- Study protocol: Behavioral economics and self-determination theory to change diabetes risk (BEST Change).Contemporary clinical trials · 2023Article
- Team members influence retention in a First Peoples' community-based weight-loss program.Preventive medicine reports · 2022Article
- Outcomes of a culturally informed weight-loss competition for New Zealand Indigenous and Pacific peoples: a quasi-experimental trial.BMC nutrition · 2021Article
- Effects of an mHealth App (Kencom) With Integrated Functions for Healthy Lifestyles on Physical Activity Levels and Cardiovascular Risk Biomarkers: Observational Study of 12,602 Users.Journal of medical Internet research · 2021Observational
- Interplay of Support, Comparison, and Surveillance in Social Media Weight Management Interventions: Qualitative Study.JMIR mHealth and uHealth · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Team-based internet interventions are increasing in popularity as a way of promoting weight loss in large numbers of individuals. Given that social networks influence health behavior change, this study investigated the effects of teammates and social influence on individual weight loss during a team-based weight loss competition. Shape Up Rhode Island (SURI) 2009 was a 12-week online program open to adult residents of Rhode Island. Participants joined with a team and competed with other teams on weight loss and/or physical activity. Overweight/obese (OW/OB) individuals (N = 3,330; 76% female; age = 46.1 ± 10.8; BMI = 31.2 ± 5.3 kg/m(2)), representing 987 teams, completed the weight loss program. Multilevel modeling was used to examine whether weight loss clustered among teammates and whether percentage of teammates in the weight loss division and reported teammate influence on weight loss were associated with individual weight outcomes. OW/OB completers reported losing 4.2 ± 3.4% of initial body weight. Weight loss was similar among teammates (intraclass correlation coefficient (ICC) = 0.10, P < 0.001). Moreover, having a greater percentage of teammates in the weight loss division and reporting higher social influence for weight loss were associated with greater percent weight loss (P's ≤ 0.002). Similarly, achieving a clinically significant (5%) weight loss tended to cluster within teams (ICC = 0.09; P < 0.001) and having more teammates in the weight loss division and higher social influence for weight loss were associated with increased likelihood of achieving a 5% weight loss (odds ratio (OR) = 1.06; OR = 1.20, respectively). These results suggest that teammates affect weight loss outcomes during a team-based intervention. Harnessing and maximizing teammate influence for weight loss may enhance weight outcomes in large-scale team-based programs.
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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.