ArticleBMC public health2016
Seasonal changes in objectively measured sedentary behavior and physical activity in Japanese primary school children.
Article in BMC public health, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 43 citations in OpenAlex.
- School's Out, Rules Out: Changes in parent rules and routines over summer from the What's UP (Undermining Prevention) with Summer Observational Cohort Study.Research square · 2026Article
- Children's Health, Wellbeing and Academic Outcomes over the Summer Holidays: A Scoping Review.Children (Basel, Switzerland) · 2024Article
- Timing and intensity of physical activity and late sleeping habits among children in Japan.Frontiers in pediatrics · 2022Article
- The Immediate and Lasting Effects of Resident Summer Camp on Movement Behaviors Among Children.Frontiers in pediatrics · 2022Article
- Prepubertal Children With Metabolically Healthy Obesity or Overweight Are More Active Than Their Metabolically Unhealthy Peers Irrespective of Weight Status: GENOBOX Study.Frontiers in nutrition · 2022Article
- Effect of temporary school closure due to COVID-19 on musculoskeletal function in elementary school children.Journal of rural medicine : JRM · 2021Article
- Changes in Physical Fitness during Summer Months and the School Year in Austrian Elementary School Children-A 4-Year Longitudinal Study.International journal of environmental research and public health · 2021Article
- Associations between Adherence to Combinations of 24-h Movement Guidelines and Overweight and Obesity in Japanese Preschool Children.International journal of environmental research and public health · 2020Article
- Tracking Children's Physical Activity Patterns across the School Year: A Mixed-Methods Longitudinal Case Study.Children (Basel, Switzerland) · 2020Article
- Seasonal Changes in Continuous Sedentary Behavior in Community-Dwelling Japanese Adults: A Pilot Study.Medicines (Basel, Switzerland) · 2020Article
- Comparison of ActiGraph GT9X Link with two Japanese accelerometers for assessments of free-living physical activity in junior high school students.BMC research notes · 2020Article
- Physical Activity Drops During Summer Holidays for 6- to 9-Year-Old Children.Frontiers in public health · 2020Article
- Accelerometer-Assessed Physical Activity and Sedentary Time at School for Children with Disabilities: Seasonal Variation.International journal of environmental research and public health · 2019Article
- Article
- Gender differences in physical activity and sedentary behavior of Japanese primary school children during school cleaning time, morning recess and lunch recess.BMC public health · 2019Article
- Prediction of Physical Activity Intensity with Accelerometry in Young Children.International journal of environmental research and public health · 2019Article
- Ethnic differences in sedentary behaviour in 6-8-year-old children during school terms and school holidays: a mixed methods study.BMC public health · 2019Article
- Trends in the seasonal variation of paediatric fractures.Journal of children's orthopaedics · 2018Article
- Associations of Physical Activity and Sedentary Time in Primary School Children with Their Parental Behaviors and Supports.International journal of environmental research and public health · 2018Article
- Objectively evaluated physical activity and sedentary time in primary school children by gender, grade and types of physical education lessons.BMC public health · 2018Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe recent prevalence of obesity in Japanese children is much higher compared to 1980. The present study compared daily sedentary behavior (SB) and physical activity (PA) between the school year and summer vacation in Japanese primary school children.
methodsParticipants were 98 Japanese boys (8.9 ± 1.8 years at baseline) and 111 girls (9.1 ± 1.8 years). SB and PA were measured in May (school term) and July/August (summer vacation), 2011. SB and PA were assessed using a triaxial accelerometer (Active style Pro HJA-350IT, Omron Healthcare) for 7 consecutive days. The average number of minutes spent in SB (no more than 1.5 metabolic equivalents (METs)), light intensity activity (LPA; more than 1.5 to less than 3.0 METs) and moderate-to-vigorous physical activity (MVPA; 3.0 METs or more), and step counts were calculated for each individual. Moreover, the determinants/moderators of changes in SB and PA were examined.
resultsDaily SB was significantly higher in the summer vacation than in the school year for both boys and girls (p < 0.05). Ambulatory and total LPA and MVPA, non-ambulatory LPA and step counts were lower in summer vacation in both genders (p < 0.001). Moreover, non-ambulatory MVPA was significantly lower in the summer vacation than in the school year for girls (p < 0.001). The decrease in non-ambulatory MVPA in boys and increase in SB in girls were significantly lower in those who participated in sports compared to those who did not (p < 0.040 or p < 0.033). The change in SB for boys was significantly associated with having a TV in the bedroom (p < 0.022).
conclusionsThese findings show that primary school children in Japan are less active in the summer vacation, as indicated by both higher SB and lower LPA and ambulatory MVPA in both genders. Moreover, the seasonal change in non-ambulatory MVPA for Japanese children was affected by gender. This study also suggests that sports participation and bedroom TV ownership may moderate seasonal changes in PA and SB. The results emphasize the need to take summer vacation into account when planning interventions aimed at decreasing SB or increasing PA in Japanese children.
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