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      Abdominal muscular endurance in Brazilian children and adolescents: systematic review of cross-sectional studies Translated title: Resistência muscular abdominal em crianças e adolescentes do Brasil: revisão sistemática dos estudos transversais

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          Abstract

          Abstract The literature has demonstrated the importance of musculoskeletal fitness in the prevention of chronic noncommunicable diseases. Although current recommendations of physical activities include strengthening and muscular endurance aspects, little is known about the muscular endurance levels of children and adolescents in a national scope. The aim of this study was to systematically review the literature to identify the prevalence of Brazilian children and adolescents who meet health criteria for muscular endurance. A hierarchical search was conducted in four databases (MEDLINE; Scopus; SciELO; LILACS) using the following terms: “muscular endurance”, “muscle endurance”, “physical fitness”, “child”, “adolescent”, “adults” “school” and correspondents in the Portuguese language. Overall, 2,652 articles (2,269 had their title and abstract read) were found and 70 were eligible for reading in full. Seventeen studies were reviewed and evaluated for risk of bias. Among 32,661 children and adolescents, only 40.2% of boys and 31.9% of girls presented abdominal muscular endurance adequate for health, and most studies were conducted in the southern region of Brazil. The variability in procedures for evaluating abdominal muscular endurance and cut-points used for interpretation occurred due to the use of different standardizations (PROESP/BR®, FITNESSGRAM® and AAHPERD®). Less than half of Brazilian adolescents of both sexes have adequate abdominal muscular endurance for health. Studies investigating the causes and consequences of inadequate abdominal muscular endurance may contribute to strategies for disease prevention and health promotion of children and adolescents.

          Translated abstract

          Resumo A literatura tem demonstrado a importância da aptidão musculoesquelética na prevenção de doenças crônicas não transmissíveis. Embora as recomendações atuais de atividades físicas incluam aspectos de fortalecimento e a resistência muscular, pouco se conhece sobre os níveis de resistência muscular de crianças e adolescentes numa abrangência nacional. O objetivo deste estudo foi revisar sistematicamente a literatura para identificar a prevalência de crianças e adolescentes brasileiros que atendem aos critérios de saúde para a resistência muscular. Foi conduzida uma busca sistemática em quatro bases de dados (MEDLINE; Scopus; SciELO; LILACS), utilizando os termos “muscular endurance”, “muscle endurance”, “physical fitness”, “child”, “adolescent”, “adults”, “school” e correspondentes no idioma português. Foram encontrados 2.652 artigos (2.269 tiveram seu título e resumo lidos) e 70 foram elegíveis para leitura na íntegra. Dezessete estudos foram revisados e avaliados quanto ao risco de viés. Entre 32.661 crianças e adolescentes, apenas 40,2% dos meninos e 31,9% das meninas apresentaram resistência muscular abdominal adequada para a saúde, sendo que a maior parte dos estudos foi conduzida na região Sul do Brasil. A variabilidade nos procedimentos para avaliação da resistência muscular abdominal e nos pontos de corte utilizados para interpretação ocorreu devido à utilização de diferentes padronizações (PROESP/BR®, FITNESSGRAM® e AAHPERD®). Menos da metade dos adolescentes brasileiros de ambos os sexos tem resistência muscular abdominal adequada para a saúde. Estudos que investiguem as causas e as consequências da resistência muscular abdominal inadequada podem contribuir para estratégias de prevenção de doenças e promoção da saúde de crianças e adolescentes.

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          Most cited references31

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          Predictive validity of health-related fitness in youth: a systematic review.

          The objective of the present systematic review was to investigate whether physical fitness in childhood and adolescence is a predictor of cardiovascular disease (CVD) risk factors, events and syndromes, quality of life and low back pain later in life. Physical fitness-related components were: cardiorespiratory fitness, musculoskeletal fitness, motor fitness and body composition. Adiposity was considered as both exposure and outcome. The results of 42 studies reporting the predictive validity of health-related physical fitness for CVD risk factors, events and syndromes as well as the results of five studies reporting the predictive validity of physical fitness for low back pain in children and adolescents were summarised. Strong evidence was found indicating that higher levels of cardiorespiratory fitness in childhood and adolescence are associated with a healthier cardiovascular profile later in life. Muscular strength improvements from childhood to adolescence are negatively associated with changes in overall adiposity. A healthier body composition in childhood and adolescence is associated with a healthier cardiovascular profile later in life and with a lower risk of death. The evidence was moderate for the association between changes in cardiorespiratory fitness and CVD risk factors, and between cardiorespiratory fitness and the risk of developing the metabolic syndrome and arterial stiffness. Moderate evidence on the lack of a relationship between body composition and low back pain was found. Due to a limited number of studies, inconclusive evidence emerged for a relationship between muscular strength or motor fitness and CVD risk factors, and between flexibility and low back pain.
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            Motor competence and health related physical fitness in youth: A systematic review.

            This study aimed to review the scientific evidence on associations between motor competence (MC) and components of health related physical fitness (HRPF), in children and adolescents.
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              Effects of muscular strength on cardiovascular risk factors and prognosis.

              Physical fitness is one of the strongest predictors of individual future health status. Together with cardiorespiratory fitness (CRF), muscular strength has been increasingly recognized in the pathogenesis and prevention of chronic disease. We review the most recent literature on the effect of muscular strength in the development of cardiovascular disease, with special interest in elucidating its specific benefits beyond those from CRF and body composition. Muscular strength has shown an independent protective effect on all-cause and cancer mortality in healthy middle-aged men, as well as in men with hypertension and patients with heart failure. It has also been inversely associated with age-related weight and adiposity gains, risk of hypertension, and prevalence and incidence of the metabolic syndrome. In children and adolescents, higher levels of muscular fitness have been inversely associated with insulin resistance, clustered cardiometabolic risk, and inflammatory proteins. Generally, the influence of muscular fitness was weakened but remained protective after considering CRF. Also, interestingly, higher levels of muscular fitness seems to some extent counteract the adverse cardiovascular profile of overweight and obese individuals. As many of the investigations have been conducted with non-Hispanic white men, it is important to examine how race/ethnicity and gender may affect these relationships. To conclude, most important effects of resistance training are also summarized, to better understand how higher levels of muscular fitness may result in a better cardiovascular prognosis and survival.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbcdh
                Revista Brasileira de Cineantropometria & Desempenho Humano
                Rev. bras. cineantropom. desempenho hum.
                Universidade Federal de Santa Catarina (Florianópolis, SC, Brazil )
                1415-8426
                1980-0037
                August 2018
                : 20
                : 4
                : 483-496
                Affiliations
                [02] Laguna SC orgnameSanta Catarina State University orgdiv1Center for Higher Education in the Southern Region Brazil
                [03] Florianopolis SC orgnameFederal University of Santa Catarina orgdiv1Research Center in Kinanthropometry and Human Performance Brazil
                [01] Ribeirão Preto São Paulo orgnameUniversidade de São Paulo orgdiv1Graduate Program in Rehabilitation and Functional Performance Brazil
                Article
                S1980-00372018000400483
                10.5007/1980-0037.2018v20n4p483
                9de97e50-8350-4bdb-a320-2d53dbbf4399

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 20 April 2018
                : 12 July 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 40, Pages: 14
                Product

                SciELO Brazil


                Adolescent,Criança,Aptidão física,Adolescente,Physical fitness,Child

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