Does body mass index modify the association between physical activity and screen time with cardiometabolic risk factors in adolescents? Findings from a country-wide survey

Abstract

MVPA and ST are independently associated with cardiometabolic risk; the association with ST, however, appears modified by BMI. Normal-weight adolescents should be encouraged to increase MVPA, whereas a combination of increasing MVPA and decreasing ST is recommended in those who are overweight or obese.

Systematic review of childhood and adolescence sedentary behavior: analysis of the Report Card Brazil 2018

“…9,14,17,18,[30][31][32][33]36,42,[52][53][54][59][60][61][62]65,[67][68][69][70][73][74][75][77][78][79][80][81]86,93,94,97,[99][100][101][102][103][104][105][106] Only three studies assessed sedentary behavior using accelerometers. 11,15,16 The cut-off point used in the studies varied considerably from 2 to 4 hours, although most studies used cut-off point of 2 hours of screen time: 20 studies 18,20,21,27,[30][31][32][33]37,38,41,46,…”

“…Cureau et al 101 Oliveira et al 36 Brazil Moraes et al 44 Moraes et al 45 Moraes Silva et al 59 Silva et al 104 Silva et al 61 Silva et al 62 Lopes et al 63 State Barbosa Filho et al 77 Barbosa Filho et al 78 Curitiba. PR (2011) School-based 1,555 (52.6) 77 1,628 (47.5) 78 11-17.9 Q-GSHS (v); Self-reported; n.a.…”

The association between adolescent psychopathology and subsequent physical activity in young adulthood: a 21-year birth cohort study

“…For the main analysis, logistic regression was used to examine the association between PAE at age 14 and mental health outcomes at age 21. As previous studies have shown that age at interview (the data collection occurred over 3 years, and the ages of cohort members at the 21 year follow-up ranged from 18 to 23 years), sex, and body mass index (BMI) are associated with both PAE and mental health wellbeing (Bauman et al, 2012;Cureau et al, 2017;Kessler et al, 2007b;Scott et al, 2008), the analyses were adjusted for these variables. Further, the analyses were also adjusted for the YSR score at the 14 year follow-up to control for psychopathology at baseline.…”

CIAFIS – Congresso Internacional de Atividade Física, Nutrição e Saúde

“…Um recente estudo de meta-análise (Ekelund et al, 2016) demonstrou que a exposição ao tempo de televisão foi um melhor preditor de mortalidade em comparação ao tempo sentado, confirmando assim a importância da avaliação da exposição ao tempo de televisão. Por outro lado, embora o padrão de utilização dos aparelhos de tela tem mudado nos últimos anos (e.g.…”

“…É importante ressaltar também que o tempo excessivo de tela na adolescência pode ser transferido à idade adulta (Biddle, Pearson, Ross, & Braithwaite, 2010). Isso é ainda mais relevante uma vez que estudos de revisão sistemática e meta-análise em diferentes subgrupos populacionais (Ekelund et al, 2016;Owen et al, 2010;Pate et al, 2008) têm demonstrado que a exposição ao CS está associada estão associados à obesidade, diabetes tipo 2, doenças cardiovasculares.…”