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      Evolução da pesquisa epidemiológica em atividade física no Brasil: revisão sistemática Translated title: Evolution of the epidemiological research on physical activity in Brazil: a systematic review

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          Abstract

          OBJETIVO: Descrever a evolução da pesquisa epidemiológica em atividade física no Brasil. MÉTODOS: Revisão sistemática da literatura, realizada em bases de dados eletrônicas (Medline/PubMed, Lilacs, Ovid, Science Direct, BioMed Central e High Wire), em periódicos nacionais não indexados, por busca específica por autores e contato com pesquisadores. A seleção dos artigos teve como critérios de inclusão: amostra representativa de alguma população definida; tamanho da amostra de pelo menos 500 indivíduos; coleta de dados realizada no Brasil; mensuração de atividade física e relato dos resultados com base nessa variável. RESULTADOS: Foram incluídos 42 estudos. O primeiro artigo foi publicado em 1990, observando-se tendência de aumento de publicações a partir de 2000. Foi detectada disparidade regional nas publicações, com concentração de estudos nas regiões Sudeste e Sul. A maioria dos estudos (93%) utilizou questionários como instrumentos de pesquisa, cujos conteúdos variaram, assim como as definições operacionais de sedentarismo, dificultando a comparação dos resultados. CONCLUSÕES: Embora a literatura em epidemiologia da atividade física venha crescendo quantitativamente no Brasil, limitações metodológicas dificultam a comparação entre os estudos, tornando a padronização de instrumentos e definições essenciais para o avanço científico da área.

          Translated abstract

          OBJECTIVE: To describe the evolution of the epidemiological research on physical activity in Brazil. METHODS: A systematic review of the literature was carried out in electronic databases (Medline/PubMed, Lilacs, Ovid, Science Direct, BioMed Central and High Wire), non-indexed Brazilian journals, query by specific authors, and contact with other researchers. The inclusion criteria were: the sample should be representative of a defined population; sample size equal to or greater than 500 individuals; data collection in Brazil; measurement of physical activity; and report of data on this variable. RESULTS: A total of 42 studies were reviewed. The first study was published in 1990, and there has been a clear growth in the number of publications since 2000. Great regional disparities were seen and most studies were carried out in the Southeast and South regions. Almost all studies (93%) used questionnaires but operational definitions of sedentary lifestyle and questionnaires used varied markedly across studies preventing result comparisons. CONCLUSIONS: Although the literature on physical activity in Brazil has quantitatively increased, methodological limitations make it difficult to compare study results. Therefore, standardization of instruments and definitions is essential for the improvement of scientific knowledge in the area.

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          Modern epidemiology

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            Physical activity and health: a report of the Surgeon General

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              Updating the evidence that physical activity is good for health: an epidemiological review 2000-2003.

              A Bauman (2004)
              Developing policy and strategic initiatives to increase population levels of physical activity (PA) requires constant referral to the epidemiological evidence base. This paper updates the evidence that PA confers a positive benefit on health, using research studies in the peer-reviewed scientific literature published between 2000-2003. Areas covered include updates in all-cause mortality and in cardiovascular disease prevention, diabetes, stroke, mental health, falls and injuries, and in obesity prevention. Recent evidence on PA and all-cause mortality replicates previous findings, and is consistent with current Australian moderate PA recommendations. Recent papers have reinforced our understanding of the cardiovascular protective effects of moderate PA, with new evidence that walking reduces the risk of CVD and, in two studies, at least as much as vigorous activity. The evidence base for protective effects of activity for women, older adults and for special populations has strengthened. Cancer prevention studies have proliferated during this period but the best evidence remains for colon cancer, with better evidence accumulating for breast cancer prevention, and uncertain or mixed evidence for the primary prevention of other cancers. Important new controlled-trial evidence has accumulated in the area of type 2 diabetes: moderate PA combined with weight loss, and a balanced diet can confer a 50-60% reduction in risk of developing diabetes among those already at high risk. Limited new evidence has accumulated for the role of PA in promoting mental health and preventing falls.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                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 2007
                : 41
                : 3
                : 453-460
                Affiliations
                [1 ] Universidade Federal de Pelotas Brazil
                Article
                S0034-89102007000300018
                10.1590/S0034-89102007000300018
                d94d809f-d3e0-4954-a24e-43e85b37bf04

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

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                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
                Motor activity,Exercise,Epidemiologic studies,Brazil,Review,Atividade motora,Exercício,Estudos epidemiológicos,Brasil,Revisão

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