Pattern of sedentary behavior in brazilian adolescents

Palavras-chave: Sedentary lifestyle, Epidemiology, Accelerometry

Resumo

O presente estudo mensurou objetivamente o padrão do comportamento sedentário em escolares de uma cidade da região sul do Brasil. Amostra probabilística composta por 394 adolescentes selecionada em dez escolas públicas da cidade de Londrina/PR. O ponto de corte de 720 counts.min-1 para o vetor magnitude do acelerômetro ActiGraph foi utilizado para estimar o tempo sedentário total, bouts (1-4 min, 5-9 min, 10-14 min, 15-29 min e ≥ 30 min) e breaks ao longo da semana, durante dias de semana e defi nais de semana, bem como no tempo na escola e fora da escola. Adolescentes gastaram cerca de 10 horas diárias em comportamento sedentário. Do tempo sedentário registrado em bouts, cerca de 50% (278 de 535 minutos) foram acumulados em bouts curtos (< 10 min). Comparativamente, adolescentes apresentaram maior tempo em bouts mais curtos (< 10 minutos) dentro da escola e maior tempo em bouts prolongados fora da escola (≥ 15 minutos) (p < 0,05). Tempo sedentário, tempo em bouts e número de breaks não foram in uenciados por sexo ou nível eco- nômico. Em conclusão, adolescentes brasileiros apresentam elevados níveis de tempo sedentário, apresentando um padrão mais desfavorável no ambiente não escolar.

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Biografia do Autor

Drielly Elvira Ramos, Faculty of Physical Education and Sport, Londrina State University, Londrina, Brazil.

Laboratório de Atividade Física e Saúde, Centro de Educação Física e Esporte

Maria Raquel de Oliveira Bueno, Faculty of Physical Education and Sport, Londrina State University, Londrina, Brazil.

Laboratório de Atividade Física e Saúde, Centro de Educação Física e Esporte

Lidyane Zambrin Vignadelli, Faculty of Physical Education and Sport, Londrina State University, Londrina, Brazil.

Laboratório de Atividade Física e Saúde, Centro de Educação Física e Esporte

André Oliveira Werneck, Faculty of Physical Education and Sport, Londrina State University, Londrina, Brazil.

Laboratório de Atividade Física e Saúde, Centro de Educação Física e Esporte

Enio Ricardo Vaz Ronque, Faculty of Physical Education and Sport, Londrina State University, Londrina, Brazil.

Laboratório de Atividade Física e Saúde, Centro de Educação Física e Esporte

Manoel João Coelho-E-Silva, Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal.

CIDAF (uid/dtp/04213/2016)

Marcelo Romanzini, Faculty of Physical Education and Sport, Londrina State University, Londrina, Brazil.

Laboratório de Atividade Física e Saúde, Centro de Educação Física e Esporte

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Publicado
14-08-2018
Seção
Artigos Originais