Trial reportChildhood obesity (Print)2012
The impact of a 3-year after-school obesity prevention program in elementary school children.
Trial report in Childhood obesity (Print), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 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
38 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- Interventions to prevent obesity in children aged 5 to 11 years old.The Cochrane database of systematic reviews · 2024Pooled it
- Physical activity interventions for cardiopulmonary fitness in obese children and adolescents: a systematic review and meta-analysis.BMC pediatrics · 2023Pooled it
- Opportunities in the Extended Day: Approaches for Promoting Physical Activity and Healthy Eating During Out-of-School Time.The Journal of school health · 2023Pooled it
- Interventions in outside-school hours childcare settings for promoting physical activity amongst schoolchildren aged 4 to 12 years.The Cochrane database of systematic reviews · 2021Pooled it
- Effectiveness and process evaluation in obesity and type 2 diabetes prevention programs in children: a systematic review and meta-analysis.BMC public health · 2021Pooled it
- Interventions for preventing obesity in children.The Cochrane database of systematic reviews · 2019Pooled it
- Preliminary Results of the Planet Nutrition Program on Obesity Parameters in Mexican Schoolchildren: Pilot Single-School Randomized Controlled Trial.International journal of environmental research and public health · 2021Trial
- Impact on Physical Fitness of the Chinese CHAMPS: A Clustered Randomized Controlled Trial.International journal of environmental research and public health · 2019Trial
- Impact of the Out-of-School Nutrition and Physical Activity (OSNAP) Group Randomized Controlled Trial on Children's Food, Beverage, and Calorie Consumption among Snacks Served.Journal of the Academy of Nutrition and Dietetics · 2018Trial
- Improving Physical Fitness and Cognitive Functions in Middle School Students: Study Protocol for the Chinese Childhood Health, Activity and Motor Performance Study (Chinese CHAMPS).International journal of environmental research and public health · 2018Trial
- The Viennese EDDY Study as a Role Model for Obesity: Prevention by Means of Nutritional and Lifestyle Interventions.Obesity facts · 2018Trial
- Evaluation of a statewide dissemination and implementation of physical activity intervention in afterschool programs: a nonrandomized trial.Translational behavioral medicine · 2017Trial
- Physical activity outcomes in afterschool programs: A group randomized controlled trial.Preventive medicine · 2016Trial
- Combining Ecological Momentary Assessment and Social Network Analysis to Study Youth Physical Activity and Environmental Influences: Protocol for a Mixed Methods Feasibility Study.JMIR research protocols · 2025Article
- Association between time of assessment within a school year and physical fitness of primary school children.Scientific reports · 2024Article
- Degree of implementation of a play-based curricular intervention affects children's movement in afterschool settings.Journal of healthy eating and active living · 2024Article
- Scoping Review of Family and Community Engagement Strategies Used in School-Based Interventions to Promote Healthy Behaviors.The Journal of school health · 2023Article
- School-Based Exercise Programs for Promoting Cardiorespiratory Fitness in Overweight and Obese Children Aged 6 to 10.Children (Basel, Switzerland) · 2022Review
- Identification of Factors Influencing Cholesterol Changes in Elementary-School Children: A Longitudinal Study.Children (Basel, Switzerland) · 2022Article
- The Effects of Different Exercise Modalities in the Treatment of Cardiometabolic Risk Factors in Obese Adolescents with Sedentary Behavior-A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Children (Basel, Switzerland) · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
backgroundChildren tend to be sedentary during the after-school hours, and this has deleterious effects on their health. The objective of the present study was to determine the effects of a 3-year after-school physical activity (PA) program, without restriction of dietary energy intake, on percent body fat (%BF), cardiorespiratory fitness (CRF), and cardiometabolic markers in children.
methodsA cluster randomization design was employed. A total of 574 3rd grade children from 18 elementary schools in the southeastern United States participated. The intervention consisted of 80 minutes of age-appropriate moderate-to-vigorous PA each school day. The main outcomes of interest were %BF measured by dual-energy X-ray absorptiometry; CRF measured by heart rate in response to a submaximal step test; nonfasting total and high-density lipoprotein cholesterol (HDL-C); and resting blood pressure (BP).
resultsIntent-to-treat analyses showed significant treatment by time interactions for %BF (p = 0.009) and CRF (p = 0.0003). The change pattern of the means suggested that %BF and CRF in intervention children improved relative to control children during the school months, rebounding to the levels of control children over the summers following years 1 and 2. Year-by-year analyses of what occurred during the months when the program was offered revealed dose–response relations for %BF and CRF, such that the clearest beneficial effects were seen for those youth who attended at least 60% of the after-school sessions. No significant intervention effects were seen for cholesterol or BP.
conclusionsAn after-school PA program was effective in reducing adiposity and improving CRF, especially in the children who attended the sessions at least 3 days/week. However, the favorable effects on %BF and CRF were lost over the summer. Thus, it is critical to incorporate strategies that attract and retain the children to receive an adequate dose of PA year-round.
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