ObjectivesThis study evaluated the relationship between the skeletal muscle mass (SMM), obtained by predictive equations, and the body composition, nutritional aspects, functionality and physical performance in elderly people.MethodsThe sample consisted of adults aged 65 years or over from the cross-sectional study of the Brazilian Elderly Frailty Study Network, in Cuiabá, Mato Grosso State, Brazil. The anthropometric parameters, instrumental activities of daily living (IADL), Short Physical Performance Battery (SPPB), and handgrip strength (HGS) were evaluated. The SMM was estimated by 2 predictive anthropometric equations.ResultsBoth SMM equations correlated with age, anthropometric indices, SPPB, IADL, and HGS. However, only HGS and neck circumference strongly correlated in both equations, being higher in SMM II.ConclusionsIt seems that both equations are sensitive to obtain the SMM, contributing to the diagnosis of sarcopenia, nutritional status, and a physical performance condition.

However, sarcopenia cannot be considered only in relation to age, but as a multidimensional geriatric syndrome 4 , given its high prevalence in the elderly, since more than 50% of the population over 80 years old suffers from this medical condition 5,6. In addition to the inherent aspects of aging itself, it is determined by genetic predisposition, life habits, changes in living conditions, and chronic diseases 7 , which may contribute to the weakness and loss of independence in daily activities 8 , still being an independent predictor of hospitalization, disability, and death 9. In recent years, some experts have created consensus on a broader diagnosis of sarcopenia: The European Working Group on Sarcopenia in Older People (EWGSOP), which recommends a diagnosis based on decreased muscle mass, Abstract Objectives: There is little information about the risk factors for sarcopenia and dynapenia. This study aimed to assess the prevalence of sarcopenia and dynapenia and to verify which risk factors are associated with the elderly population. Methods: A total of 387 elderly people were evaluated. We used a questionnaire to identify sociodemographic and behavioral aspects. For physical performance, we used the Short Physical Performance Battery. Using the European Working Group of Sarcopenia in Older People consensus, we defined sarcopenia that includes the occurrence of low muscle mass, added to low muscle strength or low physical performance. Dynapenia was defined using handgrip strength. Results: Sarcopenia and dynapenia were identified in 15.3% and 38.2% of the elderly people, respectively; 15.8% of women and 14.2% of men had sarcopenia, and 52.4% of women and 13.5% of men had dynapenia. Sarcopenia was associated with the increase in aging, white race, smoking, and risk of malnutrition. Dynapenia is more likely to occur in women and hospitalized patients. Conclusion: Sarcopenia had a greater association with the risk factors evaluated here, mainly with smoking and nutritional status. On the other hand, dynapenia was different, having a greater association with hospital intervention.

No abstract

No abstract

Background: The magnitude of “Sarcopenia” and “Dynapenia” as a public health problem is not well established, nor is the relationship of declines strength and muscle mass to physical disability and/or loss of mobility. Objectives: Test the hypothesis that the elderly with sarcopenia are more likely to physical disability than are those with dynapenia. Design: Cross-sectional study. Setting/Participants: A total of 387 older adults (≥65 years old) from the FIBRA Study in Cuiabá, Mato Grosso, Brazil. Measurements: Sarcopenia was diagnosed according to the European Working Group on Sarcopenia in Older People (EWGSOP), which includes the presence of low muscle mass, plus low muscle strength or low physical performance. Dynapenia was defined as handgrip strength <30kgf (men) and <20kgf (women). Data relating to socio-demographic, behavioral, health conditions, physical disability, the level of physical activity, body composition, hand grip strength and the Short Physical Performance Battery were collected. Results: Regarding the loss of mobility, sarcopenia was associated with age ≥75 years, female, sedentary lifestyle, stroke, arthritis, and falls (OR = 2.95, 95% CI: 1.07 – 8.09); with no association for physical disability in BADL and IADL. Dynapenia had no association with loss of mobility; however, for disability in BADL and IADL, it was associated with the elderly aged ≥80 years old and arthritis (OR = 2.35, 95% CI: 1.42 – 3.88). Conclusion: Dynapenia is more sensitive to the prevention of future self-reported physical disability, in comparison to sarcopenia which can be used in clinical practice as a screening tool for the early decline in mobility.

No abstract

No abstract