Sarcopenia, which is low muscle mass, is a growing problem in our aging society. The prevalence of sarcopenia varies considerably between cohorts aged between 7% and over 50%. Without consensus on the definition of sarcopenia, a large number of diagnostic criteria are used. We assessed the degree of match between seven different diagnostic criteria for sarcopenia based on muscle mass and handle strength described in the literature. In this cross-sectional study, we included men (n=0325) and women (n=0329) with comprehensive measures of handle strength and body composition, as measured by the bioispectance analysis as part of the longevity study. The prevalence of sarcopenia was stratified by sex and age. (Color online) Sarcopenia is defined by international working groups as the presence of low muscle mass with low muscle strength and/or low physical efficiency. International Academy on Nutrition and Aging: international working group on sarcopenia (Reference Fielding, Vellas and Evans 43); CEESOP, European working group on sarcopenia in the elderly (reference Cruz-Jentoft, Baeyens and Bauer 44); AWGS, Asian Working Group on Sarcopenia (reference Chen, Liu and Woo 45); FNIH, Foundation for the Sarcopenia Project of the National Institutes of Health (reference Studenski, Peters and Alley 46). *Measured by double X-ray absorptiometry. With regard to sarcopenia, the main area of this debate is the need to measure muscle mass in clinical practice.
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