Effectiveness of a school-based intervention on physical activity and screen time among adolescents

Ahmed, Kazi Rumana and Kolbe-Alexander, Tracy ORCID: https://orcid.org/0000-0002-5025-3204 and Khan, Asaduzzaman (2021) Effectiveness of a school-based intervention on physical activity and screen time among adolescents. Journal Science and Medicine in Sport. pp. 1-7. ISSN 1440-2440


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 schoolswere 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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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Health and Wellbeing (1 Jan 2015 - 31 Dec 2021)
Faculty/School / Institute/Centre: Current - Institute for Resilient Regions - Centre for Health Research (1 Apr 2020 -)
Date Deposited: 12 Jan 2022 23:50
Last Modified: 19 Jan 2022 01:55
Uncontrolled Keywords: Adolescent; Intervention; Physical activity; Schools; Screen time
Fields of Research (2008): 11 Medical and Health Sciences > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified
11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110699 Human Movement and Sports Science not elsewhere classified
Fields of Research (2020): 42 HEALTH SCIENCES > 4207 Sports science and exercise > 420799 Sports science and exercise not elsewhere classified
42 HEALTH SCIENCES > 4206 Public health > 420699 Public health not elsewhere classified
Socio-Economic Objectives (2008): C Society > 92 Health > 9204 Public Health (excl. Specific Population Health) > 920401 Behaviour and Health
Socio-Economic Objectives (2020): 20 HEALTH > 2004 Public health (excl. specific population health) > 200401 Behaviour and health
Identification Number or DOI: https://doi.org/10.1016/j.jsams.2021.10.007
URI: http://eprints.usq.edu.au/id/eprint/45403

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