Stability and bidirectional relationship between physical activity and sedentary behaviours in Brazilian adolescents: Longitudinal findings from a school cohort study

Viviane S Straatmann, Ylva B Almquist, Aldair J Oliveira, Gloria V Veiga, Mikael Rostila and Claudia S Lopes

PLOS ONE, 2019, vol. 14, issue 1, 1-13

Abstract: Purpose: We investigated the stability, correlations and bidirectional relationship of light physical activities (PA), moderate and vigorous PA (MVPA), television viewing (TV) and video game/computer use (VG) in Brazilian adolescents. Methods: Adolescent Nutritional Assessment Longitudinal Study-ELANA is a middle school cohort study conducted in Rio de Janeiro-Brazil in 2010–2012. Self-reported data on PA (International Physical Activity Questionnaire- IPAQ) and screen activities were obtained from 810 adolescents (mean ages of 10.9 years old (SD 0.78) for girls; 11 years old (SD 0.85) for boys) to perform autoregressive cross-lagged structural equation models in two time points for PA and three time points for screen activities. Results: There was no significant stability of light PA and MVPA for boys and girls. Moderate stability of screen activities were found for both genders, with a significant coefficient of TV for boys (T1-T2:0.29; T2-T3:0.27 p

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0211470

DOI: 10.1371/journal.pone.0211470

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