Prevalência de comportamento sedentário em adolescentes de escola particular de ensino fundamental / Prevalence of sedentary behaviour among adolescents from a private school
Resumo
Introdução e objetivos: o sedentarismo está associado ao aumento de prevalência de várias doenças crônicas. O objetivo deste estudo é identificar a prevalência e fatores associados ao comportamento sedentário em adolescentes. Material e métodos: 62 adolescentes de ambos os sexos, idade de 10 a 14 anos, matriculados em escola particular de ensino fundamental. Foram coletados dados sobre hábitos alimentares, padrão de atividade física e estado nutricional. Foram classificados como sedentários aqueles que dedicavam período de tempo superior a duas horas por dia a atividades passivas. Resultados: estudo de 62 adolescentes com idade média de 12,1 ± 1,2 anos, sendo 58,1% do sexo feminino. Verificou-se a prevalência de comportamento sedentário em 54,8% dos adolescentes em dias de semana e 74,2% em dias de final de semana. A média de horas gastas em atividades sedentárias foi de 3 horas e 20 minutos em dias de semana e 5 horas e 15 minutos em dias de final de semana. A idade e o peso foram as variáveis que se correlacionaram positivamente com o tempo gasto em atividades passivas no final de semana e dias de semana (p < 0,05). Conclusão: aproximadamente sete em cada dez adolescentes dedicam mais de duas horas por dia no final de semana em atividades sedentárias e praticam menos de 300 minutos por semana de atividades físicas. Campanhas elucidando a importância da prática de atividade física e diminuição de comportamento sedentário são fundamentais para reduzir os potenciais riscos à saúde na vida adulta.
Descritores: adolescentes, índice de massa corporal, estilo de vida sedentário, exercício.
ABSTRACT
Introduction and Purpose: the sedentarism is associated with the increase of several chronic diseases. This study's objective is to identify the prevalence and the factors associated with the sedentary behavior in adolescents. Methods: participation of 62 adolescents either males or females, with ages between 10 to 14 years old, from a private school, whose study in the elementary school. Dietary data, physical activity pattern and nutritional status were collected. Those who dedicated 2 hours or more per day in passive activities were classified as sedentaries. Results: 62 adolescents with an average age of 12,1 ± 1,2 years old participated in the study, 58,1% were females,. The prevalence of the sedentary behavior (more than 2 hours of passive activities per day) was of 54,8% in week days and 74,2% in weekends. This behavior showed no difference between genders. The average of hours spent in sedentary activities was 3 hours and 20 minutes in week days and 5 hours and 15 minutes in weekends. The age and the weight were the variables that were positively correlated with the time spent in passive activities in week days and weekends (p < 0,05). Conclusion: seven in every ten adolescents dedicate more than two hours per day in weekends in sedentary activities and practice less than 300 minutes of physical activities per week, not using this time to practice sports. Campaigns elucidating the importance of physical activities and the decrease of sedentary behavior are necessary in order to reduce potential health risks in adulthood.
Key-words: adolescents, body mass index, sedentary lifestyle, exercise.
Descritores: adolescentes, índice de massa corporal, estilo de vida sedentário, exercício.
ABSTRACT
Introduction and Purpose: the sedentarism is associated with the increase of several chronic diseases. This study's objective is to identify the prevalence and the factors associated with the sedentary behavior in adolescents. Methods: participation of 62 adolescents either males or females, with ages between 10 to 14 years old, from a private school, whose study in the elementary school. Dietary data, physical activity pattern and nutritional status were collected. Those who dedicated 2 hours or more per day in passive activities were classified as sedentaries. Results: 62 adolescents with an average age of 12,1 ± 1,2 years old participated in the study, 58,1% were females,. The prevalence of the sedentary behavior (more than 2 hours of passive activities per day) was of 54,8% in week days and 74,2% in weekends. This behavior showed no difference between genders. The average of hours spent in sedentary activities was 3 hours and 20 minutes in week days and 5 hours and 15 minutes in weekends. The age and the weight were the variables that were positively correlated with the time spent in passive activities in week days and weekends (p < 0,05). Conclusion: seven in every ten adolescents dedicate more than two hours per day in weekends in sedentary activities and practice less than 300 minutes of physical activities per week, not using this time to practice sports. Campaigns elucidating the importance of physical activities and the decrease of sedentary behavior are necessary in order to reduce potential health risks in adulthood.
Key-words: adolescents, body mass index, sedentary lifestyle, exercise.
Palavras-chave
adolescentes; índice de massa corporal; estilo de vida sedentário; exercício.
Apontamentos
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