ArticleObesity science & practice2020
Outdoor physical activity, compliance with the physical activity, screen time, and sleep duration recommendations, and excess weight among adolescents.
Article in Obesity science & practice, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis 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
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.
- The association of screen time and the risk of sleep outcomes: a systematic review and meta-analysis.Frontiers in psychiatry · 2025Pooled it
- The effect of smombie and phubbing levels on psychological well-being in adolescents.BMC psychology · 2026Article
- Factors associated with meeting the recommendations for physical activity, sedentary behavior, and sleep in adolescents: a cross-sectional study.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2026Article
- A systematic review and meta-analyses of the relationships between active outdoor play and 24-hour movement behaviors.Journal of sport and health science · 2025Review
- Outdoor physical activity, mental health, life satisfaction, happiness and life stress among Canadian adolescents.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2025Article
- Neighborhood Socioeconomic Deprivation and Gender Disparities in Children with Excessive Body Weight in a Southern European Municipality.Children (Basel, Switzerland) · 2025Article
- Impact of household income on the risk of overweight and obesity over time among preschool-aged children: a population-based cohort study.BMC public health · 2024Article
- Suboptimal movement behaviours among children under two years old in early childhood education institutions in urban China: A cross-sectional study.Journal of global health · 2023Article
- Sleep quality, physical activity, screen time, and substance use in children with obesity: associations with obstructive sleep apnea.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023Article
- Obesity and high myopia in children and adolescents: Korea National Health and Nutrition Examination Survey.PloS one · 2022Article
- Health literacy, health status and health behaviors of German students- study protocol for the "Healthy Habits" cohort study.BMC public health · 2021Article
- "I am going out!" - lifestyle sports and physical activity in adolescents.BMC public health · 2021Article
- Exploring the effects of California's COVID-19 shelter-in-place order on household energy practices and intention to adopt smart home technologies.Renewable & sustainable energy reviews · 2021Article
- Do Adolescents Who Meet Physical Activity Recommendations on Weekdays Also Meet Them on Weekends? A Cross-Sectional Study in Colombia.International journal of environmental research and public health · 2021Article
- Regional differences in access to the outdoors and outdoor play of Canadian children and youth during the COVID-19 outbreak.Canadian journal of public health = Revue canadienne de sante publique · 2020Article
- The Gender Difference in Association between Home-Based Environment and Different Physical Behaviors of Chinese Adolescents.International journal of environmental research and public health · 2020Article
- Outdoor physical activity, compliance with the physical activity, screen time, and sleep duration recommendations, and excess weight among adolescents.Obesity science & practice · 2020Article
- Association Between Screen Time, Fast Foods, Sugar-Sweetened Beverages and Depressive Symptoms in Chinese Adolescents.Frontiers in psychiatry · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSpending time outdoor has been identified as an important way to achieve the physical activity required for maintaining and improving health and to lower sedentary time among young children. However, evidence of such relationships in adolescents is particularly limited. This study investigated the relationships between frequency of outdoor physical activity after school, compliance with the physical activity, screen time, and sleep duration recommendations, and overweight/obesity among adolescents.
methodsA total of 10 028 middle and high school students (mean age of 15.2 y) self-reported the number of weekdays they spent physically active outdoors after school. Physical activity, screen time, sleep duration, height, and weight were self-reported. Logistic regression models for the total sample and stratified by sex were adjusted for important covariates
resultsOverall, there was a positive gradient between the number of weekdays spent physically active outdoor after school and compliance with the physical activity (more than or equal to 60 min/day at moderate-to-vigorous intensity) and screen time (less than or equal to 2 h/day) recommendations while a negative gradient with overweight/obesity was observed. Significant sex differences were observed in the associations of outdoor physical activity after school with adherence to the sleep duration and physical activity recommendations. For example, outdoor physical activity after school on all 5 days was associated with greater odds of compliance with the sleep duration recommendation among males (OR = 1.53; 95% CI, 1.01-2.31), but not females (OR = 0.92; 95% CI, 0.65-1.30).
conclusionsResults suggest that outdoor physical activity after school could be a behavioural target to increase compliance with the physical activity and screen time recommendations and to possibly tackle excess weight among adolescents.
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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.