Impact of the ActTeens Program on physical activity and fitness in : a cluster randomized controlled trial
Castilho dos Santos, G., de Souza, S. T. M., da Silva, J. M., de Oliveira, B. R., Kennedy, S. G., Lubans, D. R., & Stabelini, N. A. (2024). Impact of the ActTeens Program on physical activity and fitness in : a cluster randomized controlled trial. BMC Pediatrics, 24, Article 447. https://doi.org/10.1186/s12887-024-04922-9
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BMC PediatricsAuthors
Date
2024Copyright
© The Author(s) 2024
Background
The aim of our study was to evaluate the impact of the ActTeens Program on physical activity and health-related physical fitness among adolescents in Brazil.
Methods
The “ActTeens Program” was conducted using a cluster-randomized controlled trial during 24-week school term. The sample consisted of 317 adolescents (52.7% girls; 13.61 ± 0.70 years) from four secondary schools that were randomly assigned to intervention group (N = 169) or control group (N = 148). This school-based physical activity (PA) intervention involved two components: (i) structured physical activity sessions delivered within physical education (PE) and (ii) healthy lifestyle guidance (mHealth). The primary outcome was PA assessed using Physical Activity Questionnaire for Adolescents (PAQ-A); secondary outcomes included muscular (MF) and cardiorespiratory fitness (CRF) assessed using 90-push-up, handgrip dynamometer, standing long jump, and 20 m PACER shuttle run test. Assessments were conducted at baseline, 12- and 24-week. Intervention effects were assessed using linear mixed models (LMM).
Results
For the primary outcome (PA), no significant group-by-time effects were observed for physical education based-PA (0.3 score; 95%CI: -0.1; 0.6; and − 0.01 score; 95%CI: -0.03; 0.03, at 12-wk and 24-wk respectively) and total PA (-0.02 score; 95%CI: -0.2; 0.2; and − 0.01score; 95%CI: -0.2; 0.2, at 12 and 24 weeks respectively). After 24 weeks, we observed a significant group by time effects for lower body muscular fitness (12.9 cm; 95%CI, 3.2 to 22.2).
Conclusion
The implementation of aerobic and muscle-strengthening exercises used in the ActTeens intervention did not lead to improvements in physical activity. The intervention resulted in improved lower body muscular fitness, however, we found no significant differences for upper body muscular and cardiorespiratory fitness.
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1471-2431Keywords
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Additional information about funding
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code001 and Araucaria Foundation [PBA2022011000102]. The Géssika Castilho dos Santos author would also like to acknowledge support by CAPES (nº 88887.751116/2022-00 - Educational Scholarship – PostDoctoral Research). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The ActTeens Program was funded by Araucaria Foundation [PBA2022011000102], however, the funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. ...License
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