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      Prevalência dos componentes da sarcopenia e fatores socioeconômicos associados em idosos de uma população rural do estado do Ceará, Brasil Translated title: Prevalence of sarcopenia components and associated socioeconomic factors among older adults living in rural areas in the state of Ceará, Brazil

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          Abstract

          Resumo O objetivo é estimar prevalência de componentes da sarcopenia e associações com variáveis socioeconômicas em idosos de população rural do Ceará. Estudo transversal com 274 idosos. Massa muscular foi determinada por Índice de Massa Muscular (IMM) por bioimpedância elétrica e por circunferência da panturrilha; força muscular (FM) por teste de preensão palmar; e desempenho físico por testes da caminhada (VC) e Timed-up-and-go. Provável sarcopenia foi caracterizada por diminuição da FM, sarcopenia quando associada a diminuição do IMM, e sarcopenia grave quando estes dois foram acompanhados de baixa VC. Foram estimadas associações entre condições sociodemográficas, hábitos de vida e componentes da sarcopenia. Na regressão logística, foi observada frequência mais elevada: i) no sexo masculino, idade>69 anos, e nos que não trabalham, entre os idosos com FM diminuída; ii) com idade>69 anos, nos que não moram com o cônjuge, e nos que não praticam atividade física num nível adequado, entre os idosos com IMM diminuído; iii) com idade>69 anos, nos que residem na zona rural há menos que 30 anos, e nos que não trabalham, entre os idosos com VC diminuída.

          Translated abstract

          Abstract The aim is to determine the prevalence of sarcopenia components and associations with socioeconomic variables in older persons living in rural areas in the state of Ceará, Brazil. We conducted a cross-sectional study with 274 older adults. Muscle mass was assessed using muscle mass index (MMI), measured by bioelectrical impedance analysis and calf circumference. Muscle strength (MS) was assessed using the handgrip test. Physical performance was measured using the walk test to calculate gait speed (GS) and the timed up-and-go test. Probable sarcopenia was defined as the presence of low MS, while confirmed sarcopenia was defined as the presence of low MS and low MMI. Severe sarcopenia was defined as the presence of the latter two criteria and slow GS. We tested for associations between sociodemographic characteristics and lifestyle habits and the components of sarcopenia. The logistic regression produced the following results: i) prevalence of low MS was higher among men, individuals aged >69 years, and in those not working at the time of the study; ii) the prevalence of low MMI was higher in individuals aged >69 years, those not living with a spouse, and those with an inadequate level of physical activity; iii) the prevalence of slow GS was higher in individuals aged >69 years, those who had lived in rural areas for less than 30 years, and those not working at the time of the study.

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          Most cited references34

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          Sarcopenia: revised European consensus on definition and diagnosis

          doi: 10.1093/ageing/afy169 In the original version of the above paper there was an error in Table 3, which shows the recommended cut-off points for ASM/height2 in women. The cut-off point was given as <6.0 kg/m2, but the correct value is <5.5 kg/m2. This has now been corrected online. The authors wish to apologise for this error.
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            Grip Strength across the Life Course: Normative Data from Twelve British Studies

            Introduction Epidemiological studies have shown that weaker grip strength in later life is associated with disability, morbidity, and mortality. Grip strength is a key component of the sarcopenia and frailty phenotypes and yet it is unclear how individual measurements should be interpreted. Our objective was to produce cross-sectional centile values for grip strength across the life course. A secondary objective was to examine the impact of different aspects of measurement protocol. Methods We combined 60,803 observations from 49,964 participants (26,687 female) of 12 general population studies in Great Britain. We produced centile curves for ages 4 to 90 and investigated the prevalence of weak grip, defined as strength at least 2.5 SDs below the gender-specific peak mean. We carried out a series of sensitivity analyses to assess the impact of dynamometer type and measurement position (seated or standing). Results Our results suggested three overall periods: an increase to peak in early adult life, maintenance through to midlife, and decline from midlife onwards. Males were on average stronger than females from adolescence onwards: males’ peak median grip was 51 kg between ages 29 and 39, compared to 31 kg in females between ages 26 and 42. Weak grip strength, defined as strength at least 2.5 SDs below the gender-specific peak mean, increased sharply with age, reaching a prevalence of 23% in males and 27% in females by age 80. Sensitivity analyses suggested our findings were robust to differences in dynamometer type and measurement position. Conclusion This is the first study to provide normative data for grip strength across the life course. These centile values have the potential to inform the clinical assessment of grip strength which is recognised as an important part of the identification of people with sarcopenia and frailty.
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              Applied logistic regression

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                Author and article information

                Journal
                csc
                Ciência & Saúde Coletiva
                Ciênc. saúde coletiva
                ABRASCO - Associação Brasileira de Saúde Coletiva (Rio de Janeiro, RJ, Brazil )
                1413-8123
                1678-4561
                2023
                : 28
                : 11
                : 3159-3168
                Affiliations
                [2] Fortaleza Ceará orgnameCentro Universitário Christus Brazil
                [1] Fortaleza Ceará orgnameUniversidade Estadual do Ceará orgdiv1Centro de Ciências da Saúde orgdiv2Programa de Pós-Graduação em Saúde Coletiva Brazil alizandra.gomes@ 123456hotmail.com
                Article
                S1413-81232023001103159 S1413-8123(23)02801103159
                10.1590/1413-812320232811.17642022
                3d2b92b8-c129-41ea-9a23-1d60677ad132

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

                History
                : 10 March 2023
                : 08 November 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 35, Pages: 10
                Product

                SciELO Public Health

                Categories
                Artigo

                Older persons,Sarcopenia,Prevalência,Idoso,Prevalence
                Older persons, Sarcopenia, Prevalência, Idoso, Prevalence

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