Palavras-chave
sedentary behavior
physical activity
Chile
educación física
conducta sedentaria
actividad física
Chile
educação física
comportamento sedentário
atividade física
Chile
Como Citar
Resumo
As altas taxas de obesidade e o aumento do tempo sedentário em estudantes têm consequências diretas sobre a prevalência de doenças não transmissíveis na idade adulta. O ambiente escolar é uma oportunidade de combater esses fatores de risco e a importância da aula de educação física é relevante. O objetivo do estudo foi comparar o nível de atividade física, gasto energético e tempo sedentário entre um dia letivo com e sem aulas de educação física em crianças do primeiro ciclo da educação fundamental. Trata-se de um estudo não experimental, analítico transversal com amostra intencional de 46 estudantes do primeiro ciclo da educação fundamental. O índice de massa corporal (IMC), a atividade física, o gasto energético e o tempo sedentário foram medidos com a acelerometria no dia letivo com e sem aula de educação física. O teste não paramétrico de Wilcoxon foi utilizado para determinar diferenças entre os dias letivos (p < 0,05). Os resultados mostram que, durante o dia com aulas de educação física, os escolares apresentaram nível moderado de atividade física (3,03 MET) e, no dia sem aulas de educação física, nível leve (2,32 MET). Os alunos no dia letivo com educação física apresentaram níveis mais elevados de atividade física moderada (Z = -4,430; p < 0,0001), vigorosa (Z = -5,403; p < 0,0001), muito vigorosa (Z = -3,940; p < 0,0001) e diminuição do tempo sedentário (Z = -4,149; p < 0,0001) em relação ao dia letivo sem aula de educação física. Conclui-se que, embora durante o dia letivo com educação física os escolares tenham maior atividade física, maior gasto energético e menos tempo sedentário, esse desempenho é insuficiente de acordo com as recomendações internacionais para a saúde.
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