Impact of the ActTeens Program on physical activity and fitness in adolescents: a cluster randomized controlled trial.

Autor: Castilho Dos Santos G; Health Science Center, Universidade Estadual do Norte do Paraná, Jacarezinho, PR, Brazil., de Souza Silva TM; Health Science Center, Universidade Estadual do Norte do Paraná, Jacarezinho, PR, Brazil., da Silva JM; Post-Graduate Program in Physical Education Associate UEM/UEL, Universidade Estadual de Londrina, Londrina, PR, Brazil., de Oliveira Barbosa R; Health Science Center, Universidade Estadual do Norte do Paraná, Jacarezinho, PR, Brazil., Kennedy SG; Health and Physical Education, School of Health Sciences, Western Sydney University, Kingswood, NSW, Australia., Lubans DR; Centre for Active Living and Learning, College of Human and Social Futures, University of Newcastle, Callaghan, NSW, Australia.; Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.; Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland., Stabelini Neto A; Health Science Center, Universidade Estadual do Norte do Paraná, Jacarezinho, PR, Brazil. asneto@uenp.edu.br.; Post-Graduate Program in Physical Education Associate UEM/UEL, Universidade Estadual de Londrina, Londrina, PR, Brazil. asneto@uenp.edu.br.
Jazyk: angličtina
Zdroj: BMC pediatrics [BMC Pediatr] 2024 Jul 11; Vol. 24 (1), pp. 447. Date of Electronic Publication: 2024 Jul 11.
DOI: 10.1186/s12887-024-04922-9
Abstrakt: 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.
(© 2024. The Author(s).)
Databáze: MEDLINE
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