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O presente estudo teve como objetivo descrever os níveis de atividade física dos
alunos durante o horário escolar, analisar as variações em função do género e
da idade e avaliar o contributo das aulas de Educação Física para o cumprimento
das recomendações diárias de atividade física. Para tal, foram analisados dados
de 63 alunos do 2.º e 3.º ciclos do ensino básico, utilizando acelerómetros para
medir os níveis de atividade física moderada a vigorosa (AFMV), atividades leves
e comportamentos sedentários em dois contextos distintos: dias com e sem
aulas de Educação Física. Os resultados demonstraram que, em dias sem aulas
de Educação Física, o tempo sedentário predominou, correspondendo a 80% do
período escolar, enquanto a prática de AFMV foi limitada a 10,7%. Em
contrapartida, nos dias com aulas de Educação Física, o tempo sedentário
diminuiu para 68,4%, e a média de AFMV aumentou significativamente, atingindo
64,91 minutos por dia, valor próximo das recomendações da Organização
Mundial da Saúde. Diferenças significativas foram também observadas em
função do género, com os rapazes apresentando níveis mais elevados de AFMV
em comparação com as raparigas, e em função da idade, com as crianças mais
novas a serem mais ativas do que os adolescentes. Conclui-se que as aulas de
Educação Física são essenciais para a promoção da atividade física durante o
horário escolar, desempenhando um papel fundamental na redução do
comportamento sedentário e no aumento da AFMV. Este estudo reforça a
importância de políticas escolares que priorizem a Educação Física como meio
de promover estilos de vida saudáveis entre crianças e adolescentes.
The present study aimed to describe the levels of physical activity of students during school hours, analyze variations according to gender and age, and evaluate the contribution of Physical Education classes to meeting daily physical activity recommendations. To this end, data from 63 students in the 2nd and 3rd cycles of elementary school were analyzed, using accelerometers to measure levels of moderate to vigorous physical activity (MVPA), light activities and sedentary behaviors in two distinct contexts: days with and without Physical Education classes. The results showed that, on days without Physical Education classes, sedentary time predominated, corresponding to 80% of the school period, while the practice of MVPA was limited to 10.7%. In contrast, on days with Physical Education classes, sedentary time decreased to 68.4%, and the average MVPA increased significantly, reaching 64.91 minutes per day, a value close to the recommendations of the World Health Organization. Significant differences were also observed by gender, with boys showing higher levels of MVPA compared to girls, and by age, with younger children being more active than adolescents. It is concluded that Physical Education classes are essential for promoting physical activity during school hours, playing a fundamental role in reducing sedentary behavior and increasing MVPA. This study reinforces the importance of school policies that prioritize Physical Education as a means of promoting healthy lifestyles among children and adolescents.
The present study aimed to describe the levels of physical activity of students during school hours, analyze variations according to gender and age, and evaluate the contribution of Physical Education classes to meeting daily physical activity recommendations. To this end, data from 63 students in the 2nd and 3rd cycles of elementary school were analyzed, using accelerometers to measure levels of moderate to vigorous physical activity (MVPA), light activities and sedentary behaviors in two distinct contexts: days with and without Physical Education classes. The results showed that, on days without Physical Education classes, sedentary time predominated, corresponding to 80% of the school period, while the practice of MVPA was limited to 10.7%. In contrast, on days with Physical Education classes, sedentary time decreased to 68.4%, and the average MVPA increased significantly, reaching 64.91 minutes per day, a value close to the recommendations of the World Health Organization. Significant differences were also observed by gender, with boys showing higher levels of MVPA compared to girls, and by age, with younger children being more active than adolescents. It is concluded that Physical Education classes are essential for promoting physical activity during school hours, playing a fundamental role in reducing sedentary behavior and increasing MVPA. This study reinforces the importance of school policies that prioritize Physical Education as a means of promoting healthy lifestyles among children and adolescents.
Descrição
Palavras-chave
Educação física Níveis atividade física Horário escolar Comportamento sedentário Physical education Physical activity levels School schedule Sedentary behavior . Faculdade de Ciências Sociais
Contexto Educativo
Citação
Editora
Universidade da Madeira