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Effectiveness of a school-based intervention on physical activity and screen time among adolescents.
Ahmed, Kazi Rumana; Kolbe-Alexander, Tracy; Khan, Asaduzzaman.
  • Ahmed KR; School of Health & Rehabilitation Sciences, The University of Queensland, Australia. Electronic address: k.ahmed@uqconnect.edu.au.
  • Kolbe-Alexander T; School of Health and Wellbeing, University of Southern Queensland, Australia; School of Human Movement and Nutrition Sciences, The University of Queensland, Australia; Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, South Africa. Electronic address: tracy.kolbe-alexander@usq.edu.au.
  • Khan A; School of Health & Rehabilitation Sciences, The University of Queensland, Australia. Electronic address: a.khan2@uq.edu.au.
J Sci Med Sport ; 25(3): 242-248, 2022 Mar.
Article in English | MEDLINE | ID: covidwho-1747732
ABSTRACT

OBJECTIVES:

To evaluate the effectiveness of a multi-component school-based intervention on physical activity (PA) and screen time (ST) among urban adolescents in Bangladesh.

DESIGN:

Cluster-randomised controlled trial.

METHODS:

Eight high schools were randomly assigned to either intervention group (IG) or control group (CG). Participants (n = 160 per group, 40 school) were in grades 8-9. A 12-week multi-component intervention was developed based on the WHO's Health-Promoting Schools framework. The IG received weekly supervised circuit exercise (30 min/week), health education session (10 min/week) with health educational materials, and lunchtime sports activities (20 min/week). The main outcome measures included self-reported PA, ST, knowledge on PA and SB, which were assessed at baseline, 8 and 12 weeks. Repeated measures ANCOVA was used to evaluate the intervention effects.

RESULTS:

Total PA (MET-min/week) was increased from baseline to 8 and 12 weeks in the IG (3%-5%) but decreased in the CG (5%-3%) and significantly improved in the IG compared to the CG (p < 0.001) over time. Average ST (min/day) reduced from baseline to 8 and 12 weeks in the IG (28%-35%), while remained unchanged in the CG (6%-5%). The IG had a significantly lower average ST than the CG at 12 weeks. The average knowledge scores on PA and SB were significantly higher in the IG than the CG at 12 weeks (p < 0.001).

CONCLUSIONS:

Our intervention has demonstrated some promising effects on increasing PA, reducing ST, and improving PA and SB knowledge. This study underscores the need for a scaled-up evaluation in other locations including rural settings.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Adolescent Behavior / Screen Time Type of study: Experimental Studies / Prognostic study / Randomized controlled trials Limits: Adolescent / Humans Language: English Journal: J Sci Med Sport Journal subject: Sports Medicine Year: 2022 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Adolescent Behavior / Screen Time Type of study: Experimental Studies / Prognostic study / Randomized controlled trials Limits: Adolescent / Humans Language: English Journal: J Sci Med Sport Journal subject: Sports Medicine Year: 2022 Document Type: Article