Trial reportJournal of pediatric psychology2009
Effect of peers and friends on youth physical activity and motivation to be physically active.
Trial report in Journal of pediatric psychology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 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
92 citing papers in PubMed, 6 syntheses or guidelines pooled it, 254 citations in OpenAlex.
- The role of whole network analysis in understanding health behaviours: a systematic review of smoking, alcohol use, physical activity, and diet.Frontiers in public health · 2026Pooled it
- A Systematic Literature Review of Peer-led Strategies for Promoting Physical Activity Levels of Adolescents.Health education & behavior : the official publication of the Society for Public Health Education · 2022Pooled it
- Pooled it
- Relationship between both cardiorespiratory and muscular fitness and health-related quality of life in children and adolescents: a systematic review and meta-analysis of observational studies.Health and quality of life outcomes · 2021Pooled it
- Parental and Peer Support are Associated with Physical Activity in Adolescents: Evidence from 74 Countries.International journal of environmental research and public health · 2020Pooled it
- Relationship between eating behaviors and physical activity of preschoolers and their peers: a systematic review.The international journal of behavioral nutrition and physical activity · 2016Pooled it
- Children with cancer and their cardiorespiratory fitness and physical function-the long-term effects of a physical activity program during treatment: a multicenter non-randomized controlled trial.Journal of cancer survivorship : research and practice · 2025Trial
- Trial
- Inducing incentive sensitization of exercise reinforcement among adults who do not regularly exercise-A randomized controlled trial.PloS one · 2019Trial
- A randomized controlled trial testing a social network intervention to promote physical activity among adolescents.BMC public health · 2018Trial
- The role of motivation in understanding social contextual influences on physical activity in underserved adolescents in the ACT Trial: a cross-sectional study.Childhood obesity (Print) · 2012Trial
- Children with unilateral spastic cerebral palsy have smaller and weaker tibias in the spastic limb compared to the non-spastic limb.Bone reports · 2026Article
- Sports as a pathway to wellness: sports and health-related quality of life among adolescents in Germany (a cross-sectional analysis from GeWIT Study).BMC public health · 2026Article
- Peer victimization and physical activity: the mediating role of self-esteem and physical self-concept.Frontiers in psychology · 2026Article
- Review
- Potential categories and influences on college students' exercise motivation: a latent profile-based analysis.Scientific reports · 2025Article
- A moderated mediation approach to enhancing autonomous learning in university physical education.Scientific reports · 2025Article
- A study of the relationship and drivers between participation in sports program diversity and physical fitness.Scientific reports · 2025Article
- Association of communication methods and frequency with BMI among adolescents during the COVID-19 pandemic: findings from A-CHILD study.Frontiers in public health · 2025Article
- Reasons and promotion strategies of physical activity constraints in obese/overweight children and adolescents.Sports medicine and health science · 2024Review
32 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 at 1 institution in 1 country.
Funding
Abstract
objectiveTo test whether the presence of a peer or a friend increases the motivation to be physically active in overweight and non-overweight youth in a laboratory setting.
methodsYouth motivation to be physically active as a function of the social context was measured using a computerized relative reinforcing value task to earn points exchangeable for physical and/or sedentary activities.
resultsThe presence of a friend (p<.001) increased youth's; motivation to be physically active. The presence of a peer increased overweight youth's; motivation to be physically active, whereas this was not the case for lean youth (p=.47). Participants biked a greater distance in the presence of a friend than when alone (p<.001). Overweight youth biked a greater distance in the presence of a peer than when alone, while this was not the case for lean youth (p=.23).
conclusionsFriendships may increase youth's motivation to engage in physical activity and promote greater physical activity in non-overweight and overweight youth.
Indexed as
Identifiers
What OpenQuestion holds
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.