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      Associação entre Força Muscular Relativa e Indicadores de Obesidade em Professores Universitários Translated title: Association between relative muscle strength and indicators of obesity in university professors

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          Abstract

          Resumo: O objetivo do estudo foi verificar a associação entre a força muscular relativa e os indicadores de obesidade em professores universitários. 71 docentes (37 homens e 34 mulheres) foram submetidos à medida da circunferência da cintura (CC) e ao teste de preensão manual. A partir da massa corporal (MC) e da estatura calculou-se o Índice de Massa Corporal (IMC). A força muscular relativa (% FM) foi determi nada mediante razão dos valores da média de preensão manual direita e esquerda pela MC. Com base nos valores de % FM a amostra foi estratificada em tercis de acordo com o gênero para efeito de comparação da MC, IMC e CC utilizando o teste de Kruskal Wallis. Para identificar a diferença entre dois grupos utilizou-se a Mann- Whitney e para correlação usou-se o coeficiente de Spearman. Os homens do 3° tercil apresentaram valores significativamente menores nos indicadores de obesidade quando comparados ao 1° e 2° tercil. Não houve diferença significativa para as mulheres nos indicadores de obesidade embora os valores encontrados tenham sido menores com o aumento do nível de força. Foram observadas correlações inversas para MC, IMC e CC em ambos os gêneros. O desempenho de força muscular palmar sugere maior importância na prevenção de obesidade entre os professores do que entre as professoras.

          Translated abstract

          Abstract: The aim of the study was to verify the association between relative muscular strength and indicators of obesity in university professors. 71 teachers (37 men and 34 women) were submitted to measurement of waist circumference (WC) and the handgrip test. Based on body mass (BM) and height was calculated Body Mass Index (BMI). Relative muscle strength (% FM) was determined by ratio of the averaged val ues of right and left handgrip by MC. Based on the values of the % FM, the sample was stratified into tertiles according to gender for comparison of MC, BMI and WC using the Kruskal-Wallis test; to identify the difference between two groups was used the Mann- Whitney test and for correlation was used the Spearman coefficient. Men of the 3rd tertile showed lower values significantly on indicators of obesity when compared to the 1st and 2nd tertile. There was no difference for women in obesity indicators, although the values found were lower with increasing level strength. The inverse correlations were observed for MC, BMI and WC in both genders. The performance of strength palmar prehension suggests higher importance in the pre vention of obesity between men than women professors.

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          Effects of Aging on Muscle Fibre Type and Size

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            Muscular strength as a strong predictor of mortality: A narrative review.

            Muscular strength, an important component of physical fitness, has an independent role in the prevention of chronic diseases whereas muscular weakness is strongly related to functional limitations and physical disability. Our purpose was to investigate the role of muscular strength as a predictor of mortality in health and disease. We conducted a systematic search in EMBASE and MEDLINE (1980-2014) looking for the association between muscular strength and mortality risk (all-cause and cause-specific mortality). Selected publications included 23 papers (15 epidemiological and 8 clinical studies). Muscular strength was inversely and independently associated with all-cause mortality even after adjusting for several confounders including the levels of physical activity or even cardiorespiratory fitness. The same pattern was observed for cardiovascular mortality; however more research is needed due to the few available data. The existed studies failed to show that low muscular strength is predictive of cancer mortality. Furthermore, a strong and inverse association of muscular strength with all-cause mortality has also been confirmed in several clinical populations such as cardiovascular disease, peripheral artery disease, cancer, renal failure, chronic obstructive pulmonary disease, rheumatoid arthritis and patients with critical illness. However, future studies are needed to further establish the current evidence and to explore the exact independent mechanisms of muscular strength in relation to mortality. Muscular strength as a modifiable risk factor would be of great interest from a public health perspective.
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              Effects of three trials on grip and pinch strength measurements

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                cyt
                Ciencia & trabajo
                Cienc Trab.
                Fundación Científica y Tecnológica. Asociación Chilena de Seguridad (Santiago, , Chile )
                0718-2449
                April 2018
                : 20
                : 61
                : 31-35
                Affiliations
                [1] Londrina Paraná orgnameUniversidade Estadual de Londrina Brazil
                [3] Porto União orgnameUniversidade do Contestado orgdiv1Núcleo de Estudos em Atividade Física Brazil
                [2] Guarapuava Paraná orgnameUniversidade Estadual do Centro-Oeste Brazil
                Article
                S0718-24492018000100031
                f14002b5-d635-4485-9f4f-06fcfa4a026c

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

                History
                : 23 January 2018
                : 15 September 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 32, Pages: 5
                Product

                SciELO Chile


                teachers,physical activity,occupational health,atividade física,docentes,saúde ocupacional

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