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      Prática de atividade física e fatores associados em adolescentes no Nordeste do Brasil Translated title: Physical activity practice and associated factors in adolescents in Northeastern Brazil Translated title: Práctica de actividad física y factores asociados en adolescentes en el Noreste de Brasil

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          Abstract

          OBJETIVO: Estimar a proporção de adolescentes fisicamente ativos e identificar fatores associados. MÉTODOS: A amostra foi composta por 2.874 estudantes de 14 a 19 anos de idade, do ensino médio (escolas públicas e privadas), em João Pessoa, PB, Brasil. O nível de atividade física foi mensurado por meio de questionário e considerado fisicamente ativo se > 300 minutos/semana. Foram analisadas variáveis sociodemográficas, estado nutricional, comportamento sedentário, autoavaliação do estado de saúde e participação nas aulas de educação física. A razão de prevalência foi utilizada como medida de associação, estimada por meio da regressão de Poisson. RESULTADOS: A prevalência de atividade física foi de 50,2% (IC95%: 47,3;53,1). Os jovens do sexo masculino foram fisicamente mais ativos do que as do feminino (66,3% vs. 38,5%; p < 0,001). Os fatores diretamente associados à prática de atividade física foram: maior escolaridade do pai para o sexo masculino, e da mãe, para o feminino; percepção positiva de saúde e participar das aulas de educação física. CONCLUSÕES: A maioria dos adolescentes foi classificada como fisicamente ativa, sobretudo os do sexo masculino. Adolescentes filhos de pais com maior escolaridade, com percepção positiva de saúde e que participavam das aulas de educação física foram mais propensos a serem fisicamente ativos.

          Translated abstract

          OBJECTIVE: To estimate the proportion of physically active adolescents and identify associated factors. METHODS: The sample was composed of 2,874 high school students (public and private schools) aged 14 to 19 years in the city of João Pessoa, Northeastern Brazil. Physical activity level was measured by means of a questionnaire and considered physically active if > 300 minutes/week. Sociodemographic variables were analyzed, as well as nutritional status, sedentary behavior, self-report of health status and participation in physical education classes. The prevalence ratio was used as association measure, estimated by means of Poisson regression. RESULTS: The prevalence of physical activity was 50.2% (95%CI: 47.3;53.1). Male adolescents were more physically active than female adolescents (66.3% vs. 38.5%; p<0.001). The factors directly associated with practice of physical activity were: father's higher level of schooling for the male sex and mother's higher level of schooling for the female sex, positive self-reported health status, and participation in physical education classes. CONCLUSIONS: The majority of the adolescents was classified as physically active, particularly the male youths. Adolescents with parents whose level of schooling was higher, with positive health status perception, and who participated in physical education classes were more likely to be physically active.

          Translated abstract

          OBJETIVO: Estimar la proporción de adolescentes físicamente activos e identificar factores asociados. MÉTODOS: La muestra estuvo compuesta por 2.874 estudiantes de 14 a 19 años de edad, de educación secundaria (escuelas públicas y privadas), en Joao Pessoa, Noreste de Brasil. El nivel de actividad física fue medido por medio de cuestionario y considerado físicamente activo si ? 300 min/semana. Se analizaron variables sociodemográficas, estado nutricional, comportamiento sedentario, auto-evaluación del estado de salud y participación en las clases de educación física. El cociente de prevalencia fue utilizado como medida de asociación, estimado por medio de la regresión de Poisson. RESULTADOS: La prevalencia de actividad física fue de 50,2% (IC95%: 47,3;53,1). Los jóvenes del sexo masculino fueron físicamente más activos que las del sexo femenino (66,3% vs. 38,5%; p<0,001). Los factores directamente asociados a la práctica de actividad física fueron: mayor escolaridad del padre para el sexo masculino, y de la madre, para el femenino; percepción positiva de salud y participar en las aulas de educación física. CONCLUSIONES: La mayoría de los adolescentes fue clasificada como físicamente activa, principalmente los del sexo masculino. Adolescentes hijos de padres con mayor escolaridad, con percepción positiva de salud y que participaban en las clases de educación física fueron más propensos a ser físicamente activos .

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          Ethnic, socioeconomic, and sex differences in physical activity among adolescents.

          Regular physical activity is recommended for health maintenance in adolescence, but basic descriptive epidemiological data are lacking for this age group. The present study examined socioeconomic status (SES), ethnic, and sex differences in physical activity in a multiethnic sample of 1871 high school students in San Diego, California. Surveys were completed in required classes by a diverse sample of students from a low-income school district and by Anglo students from a nearby more affluent district. Boys reported more vigorous exercise outside of school and during school physical education, as well as more participation in sports teams, but girls reported taking more activity-related lessons and classes. High-SES students had more frequent physical education classes, spent more time in vigorous exercise in those classes, and participated in more activity lessons outside of school. There were few ethnic differences on summary physical activity or physical education variables. There were no SES differences, but there were ethnic differences on 5 of 22 specific activities. Demographic differences in 25 psychological, social, and environmental variables that may influence physical activity were also examined. Differences between boys and girls were found on several variables, which may explain some of the boys' higher activity levels. Ethnic and/or SES differences were found in 10 of 25 potential correlates of physical activity. These data may be used to identify specific activities that may be preferred by subgroups of adolescents and specific mediating variables that can be targeted in physical activity promotion programs for adolescents.
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            Prevalência de sedentarismo e fatores associados em adolescentes de 10-12 anos de idade

            A atividade física na adolescência acarreta vários benefícios à saúde, seja por uma influência direta sobre a morbidade na própria adolescência, seja por uma influência mediada pelo nível de atividade física na idade adulta. Avaliou-se a prevalência de sedentarismo e fatores associados em 4.452 adolescentes de 10-12 anos de idade, participantes do Estudo de Coorte de Nascimentos de 1993 em Pelotas, Rio Grande do Sul, Brasil. Sedentarismo foi definido como < 300 minutos por semana de atividade física. As perdas de acompanhamento desde o nascimento totalizaram 12,5%. A prevalência de sedentarismo foi de 58,2% (IC95%: 56,7-59,7). Na análise multivariável, o sedentarismo se associou positivamente ao sexo feminino, ao nível sócio-econômico, a ter mãe inativa e ao tempo diário assistindo à televisão. O sedentarismo se associou negativamente com o tempo diário de uso de vídeo-game. Adolescentes de nível econômico baixo apresentaram maior freqüência de deslocamento ativo para a escola. Estratégias efetivas de combate ao sedentarismo na adolescência são necessárias devido à sua alta prevalência e sua associação com inatividade física na idade adulta.
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              Prevalence of insufficient physical activity and associated factors in Brazilian adolescents.

              We aimed to describe levels of physical activity (PA) in adolescents living in southern Brazil and to explore associations between PA levels and demographic, socioeconomic, health-related, and parental variables. A further aim was to test the validity and reliability of the questionnaire used. We conducted a population-based, cross-sectional study including 857 adolescents selected randomly. Insufficient PA was defined as <300 min/wk of MVPA. PA data collected by questionnaire were compared with pedometer counts and with a longer version of the questionnaire in a subsample of 92 adolescents. Reliability of the questionnaire was good, and its validity in comparison with a longer questionnaire was also satisfactory. In comparison with pedometer data, the questionnaire presented moderate agreement. The prevalence of insufficient PA in the whole sample was 69.8% (95% CI = 66.7-72.9). Boys were more active than girls. The prevalence of insufficient PA increased with age in girls but not in boys. Among boys, those from low socioeconomic levels were more likely to be sedentary. Among girls, paternal PA was directly associated with adolescent activity levels. Urgent strategies aimed at increasing levels of activity of adolescents are necessary in Brazil given the high prevalence of insufficient PA detected in this study. The variables associated with insufficient PA varied between boys and girls.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rsp
                Revista de Saúde Pública
                Rev. Saúde Pública
                Faculdade de Saúde Pública da Universidade de São Paulo (São Paulo )
                1518-8787
                June 2012
                : 46
                : 3
                : 505-515
                Affiliations
                [1 ] Universidade Federal da Paraíba Brazil
                [2 ] Universidade Federal de Santa Catarina Brazil
                [3 ] Universidade do Porto Portugal
                [4 ] Universidade Federal de Pelotas Brazil
                Article
                S0034-89102012000300013
                10.1590/s0034-89102012000300013
                1468af23-90e6-4643-ba3b-57d1434d95ac

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielosp.org/scielo.php?script=sci_serial&pid=0034-8910&lng=en
                Categories
                Health Policy & Services

                Public health
                Adolescent,Motor Activity,Physical Education and Training,Sedentary Lifestyle,Health Behavior,Socioeconomic Factors,Adolescente,Atividade Motora,Educação Física,Conduta de Saúde,Fatores Socioeconômicos

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