Sedentary behavior in children and adolescents: an update of the systematic review of the Brazil’s Report Card

• Published in: Revista brasileira de cineantropometria & desempenho humano 2021, Vol.23
• Main Authors: Silva, Kelly Samara, Minatto, Giseli, Bandeira, Alexsandra da Silva, Santos, Priscila Cristina dos, Sousa, Ana Caroline Ferreira Campos de, Barbosa Filho, Valter Cordeiro
• Format: Article
• Language: English
• Subjects: Adolescent behavior; Brazil; Prevalence; Sedentary lifestyle; SPORT SCIENCES
• ISSN: 1415-8426; 1980-0037; 1980-0037
• DOI: 10.1590/1980-0037.2021v23e82645

Abstract This review updated data on sedentary behavior in Brazilian children and adolescents for the Brazil’s Report Card 4.0. The searching was carried out in eight databases (PubMed, Scopus, Web of Science, LILACS, SPORTDiscus, BIREME, Scielo, and Google Scholar), based on the the following criteria: original research; samples including Brazilian children and adolescents; to be a observational survey with the prevalence of at least one component of sedentary behavior. In this updated review were included 118 studies (corresponding to 159 papers), being 71 studies (104 papers) previously reviewed in the Report Card 3.0 and 47 studies (55 papers) found in update from 2018 to 2019. Screen time (34.7%) and TV viewing (28.2%) remains the most investigated components, however, two studies investigated cell phone use, and there was an increase in other types of sedentary behavior such as sitting time (from 9% to 25.6%). We found only four studies involving pre-scholars, but four of them covered almost all age groups. Self-reported questionnaire was the instrument more used; however, increased the studies using accelerometers (from 2 to 8 studies). The cut-off point more frequent was 2 hours/day (47.5%), but the use of other measures doubled. Almost 70% of the studies reported that less than 50% (general range: 9.4% to 97.7%) of individuals had < 2 hours/day of sedentary behavior. The updated review found few studies with prescholars and children; using validated instruments; using accelerometers, with standardization of cutoff points, and prevalences very close to what was observed in the previous review. Resumo Este revisão atualiza dados de comportamento sedentário em crianças e adolescentes brasileiros para o Report Card Brasil 4.0. A busca foi realizada em oito bases de dados (PubMed, Scopus, Web of Science, LILACS, SPORTDiscus, BIREME, Scielo, and Google Scholar) usando os seguintes critérios: artigos originais; amostras incluindo crianças e adolescentes; estudos observacionais que estimaram a prevalência de pelo menos um componente do CS. Nesta atualização foram incluídos 118 estudos (com publicação de 159 artigos), sendo 71 (104 artigos) revisados anteriormente no Report Card 3.0 e 47 estudos (55 artigos) encontrados na atualização de 2018 a 2019. O tempo de tela (34,7%) e de TV (28,2%) continuam sendo os componentes mais investigados, entretanto, dois estudos investigaram o uso de celular e houve aumento em outros comportamentos sedentários, como o tem