Observational studyBMC pediatrics2021
Physical activity and sedentary behaviors (screen time and homework) among overweight or obese adolescents: a cross-sectional observational study in Yazd, Iran.
Observational study in BMC pediatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 4 of them syntheses that pooled it.
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Who cites it
12 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Global prevalence of myopia in children using digital devices: a systematic review and meta-analysis.BMC pediatrics · 2025Pooled it
- Physical activity, screen time, dietary habits, and health outcomes among children and adolescents in the Middle East and North Africa region: a narrative review.Frontiers in public health · 2025Pooled it
- Prevalence of overweight and obesity among Iranian population: a systematic review and meta-analysis.Journal of health, population, and nutrition · 2023Pooled it
- Associations among Active Commuting to School and Prevalence of Obesity in Adolescents: A Systematic Review.International journal of environmental research and public health · 2022Pooled it
- Bidirectional associations and developmental trajectories between physical activity and weight self-stigma among adolescents with high body weight/obesity: A longitudinal study.Applied psychology. Health and well-being · 2026Article
- Evaluation of the association between nutrition knowledge and nutritional status among public and private upper primary school pupils.BMC nutrition · 2026Article
- Exploring the emotional and behavioral dimensions of childhood obesity: the role of shame, guilt, and eating patterns.Eating and weight disorders : EWD · 2026Article
- Impact of increased educational screen exposure on adolescent overweight and the mediating role of physical activity and sleep quality: a natural experiment study from China.BMC public health · 2026Article
- Article
- Compliance with the 24-hour movement guidelines and weight status: results from 40,970 adolescents.Frontiers in public health · 2024Article
- Influence of physical activity home environment on fundamental movement skills development in Chinese preschoolers: mediating role of moderate-to-vigorous physical activity.Frontiers in pediatrics · 2024Article
- Changes and correlates of screen time in adults and children during the COVID-19 pandemic: A systematic review and meta-analysis.EClinicalMedicine · 2022Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe growing number of adolescents who are overweight or obese (OW / OB) is a public concern. The present study was aimed to evaluate physical activity (PA) and sedentary behaviors (SB) (screen time (ST) and homework time (HT)) among Yazd OW/OB adolescents.
methodsThis cross-sectional study was performed among 510 students aged 12-16 in Yazd, Iran. The general information, PA, and SB (ST and HT) were collected by interview based on the WHO standard questionnaire. Anthropometric data were assessed by precise instruments. Daily energy intake (Energy) was obtained from a 7-day food record. Nutritionist 4 software (version I) was run to estimate the energy.
resultsThere was a high prevalence of SB > 2h/day (97.6), ST > 2h/day (70.3%), overweight or obesity (40%), abdominal obesity (36.9%), physical inactivity (29.8%) among the students. The younger age (p = 0.014), energy (p < 0.001), no access to the yard (p < 0.001), family size ≤ 2 (p = 0.023), passive transportation, (p = 0.001), the highest school days' HT (p = 0.033) and SB (p = 0.021), and the highest weekends' HT among the students were the risk factors for OW/OB. The highest PA level was associated with a lower risk of OW/OB (p < 0.001). The findings were not the same in both sexes. Compared to the normal weight students, OW / OB spent more time on school days and weekdays for ST (P <0.001), HT (P <0.001, P = 0.005) and SB (P <0.001), respectively. OW/OB students showed a higher weekends' ST (p < 0.001) and lower HT (p = 0.048) than normal-weight students.
conclusionThe prevalence of SB, ST, OW/OB, and physical inactivity were common. The school days and weekends' HT, the school days' SB and HT, age, energy, PA, and access to the yard, family size, and passive transportation were related to the greater chances of OW/OB students. Given that the expansion of online education and self-isolation in a new situation with COVID-19, it seems we will meet the worrying results.
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