Factors associated with sarcopenia in subjects aged 80 years and over

Abstract

Article based on the master' s thesis of VR SANTOS, intitled "Capacidade funcional, composição corporal e condições de saúde de idosos longevos". Universidade Estadual Paulista; 2012.Factors associated with sarcopenia in subjects aged 80 years and over Fatores associados à sarcopenia em idosos longevos A B S T R A C T ObjectiveTo analyze whether sarcopenia is associated with sociodemographic factors and chronic noncommunicable diseases in adults aged 80 years and older. MethodsThe sample consisted of 120 adults aged 80 to 95 years (83.4±2.9 years) from the city of Presidente Prudente (São Paulo, Brazil), of which 76 were females (83.4±3.0 years) and 44 were males (83.4±2.6 years). The study sociodemographic and epidemiological factors were: age stratum, gender, marital status, education level, chronic noncommunicable diseases, ethnicity, and nutritional status. Body composition was determined by Dual-Energy X-Ray Absorptiometry and sarcopenia was identified by the appendicular lean mass ratio (upper limb lean mass + lower limb lean mass [kg]/height [m] 2 ). The Chi-square test analyzed whether sarcopenia was associated with sociodemographic and epidemiological factors and binary logistic regression expressed the magnitude of the associations. The data were treated by the software Statistical Package for the Social Sciences (17.0) at a significance level of 5%. ResultsThe factors associated with sarcopenia were gender, age, nutritional status, and osteopenia/osteoporosis.

The prevalence of sarcopenia in fallers and those at risk of falls in a secondary care falls unit as measured by bioimpedance analysis

“…Prevalence of sarcopenia was lower with increasing BMI. Similar results have also been found in previous studies and it has been suggested that in older people over the age of 80 years, being underweight is an independent risk factor for sarcopenia 19,20 . However it is difficult to assess patterns of body composition from BMI 21 as this method does not discriminate between body fat and lean mass 22 .…”

Osteosarcopenic Obesity: Current Knowledge, Revised Identification Criteria and Treatment Principles

“…Measuring BMI is useful if the outcome is to change BMI, which is really a change in weight. Furthermore, a low BMI (underweight) is also associated with sarcopenia (especially in older adults) [64], osteopenia/osteoporosis [65,66,67] and frailty [68], the latter exhibiting reverse epidemiology with body weight [69]. This supports the notion of normal-weight obesity [70] and suggests that the location of fat mass and the overall volume of lean mass are more important than body weight.…”

Factors associated with sarcopenia: A cross-sectional analysis using UK Biobank

“…Previous cross-sectional studies have also investigated factors which are more likely to be associated with sarcopenia using different sarcopenia classifications and cut-off points [3,4,7]. However, to our knowledge, only one study, on a Japanese population, has used the new definition of sarcopenia to investigate potential risk factors [8].…”

“…Age, lower levels of education and income have also previously been associated with a higher likelihood of sarcopenia in both European and non-European populations, following the sarcopenia definitions from different working groups [3][4][5][6]17]. In fact, not having a formal education was associated with almost three times higher odds of sarcopenia in a Nigerian population while in Italy, higher education was associated with 15% lower odds of sarcopenia [5,6].…”

“…Although previous cross-sectional studies have identified an increasing number of factors associated with sarcopenia; including sociodemographic (age, sex, education) and lifestyle (physical activity and diet) factors [1][2][3][4][5][6][7], previous findings have been inconsistent and limited to traditional factors [2,4,5].…”