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Physical activity through a classroom-based intervention: A pragmatic non-randomized trial among swedish adolescents in an upper secondary school
Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden.
Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden.
Umeå University, Faculty of Social Sciences, Department of Education.ORCID iD: 0000-0002-9195-4816
Umeå University, Faculty of Social Sciences, Police Education Unit at Umeå University.ORCID iD: 0000-0003-2588-0780
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2021 (English)In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 18, no 21, article id 11041Article in journal (Refereed) Published
Abstract [en]

Schools are an important arena to curb the decline in physical activity (PA) in youth. School-based interventions with accelerometer-measured PA are warranted. This study aimed to increase accelerometer-measured PA in adolescents following a 12-month school-based intervention. Two school-classes of 16–18-year-old Swedish students were allocated to intervention group and control group. Accelerometer-measured PA was gathered at baseline, 6-and 12-month follow-up. Mixed-effects linear regression was used to investigate between-group and within-group differences in mean minutes per day (min/day) of moderate to vigorous PA (MVPA), light PA (LPA) and sedentary time (ST). Fifty-seven students participated (intervention group = 31, control group = 26). At 12-month follow-up, the intervention group performed 5.9 (95% CI: −4.3, 16.2) min/day more in MVPA, 1.8 (95% CI: −17.9, 14.2) min/day less in LPA, and 4.1 (95% CI: −27.3, 19.2) min/day less in ST compared to the control group. Within the intervention group, there was no significant change in PA. Within the control group, LPA decreased (95% CI: −19.6, −0.2; p = 0.044) and ST increased (95% CI: 1.8, 30.8; p = 0.028). Although no between-group differences in PA were statistically significant, the within-group changes may suggest a preventive impact on the decline in PA during adolescence.

Place, publisher, year, edition, pages
MDPI, 2021. Vol. 18, no 21, article id 11041
Keywords [en]
Accelerometer, Physical activity, School-based intervention
National Category
Public Health, Global Health, Social Medicine and Epidemiology Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:umu:diva-188900DOI: 10.3390/ijerph182111041ISI: 000726552000001Scopus ID: 2-s2.0-85117333537OAI: oai:DiVA.org:umu-188900DiVA, id: diva2:1606018
Available from: 2021-10-26 Created: 2021-10-26 Last updated: 2023-09-05Bibliographically approved

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Nyroos, MikaelaLöfgren, Hans O.

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