Lookup NU author(s): Dr Mario Siervo
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2017 Carlene A. Johnson Stoklossa et al. Background/Objective. Sarcopenic obesity (SO) is a hidden condition of reduced lean soft tissue (LST) in context of excess adiposity. SO is most commonly reported in older adults and both its risk and prevalence increase with age. A variety of body composition indices and cut points have been used to define this condition, leading to conflicting prevalence and risk prediction. Here, we investigate variability in the prevalence of SO in an adult sample of individuals with class II/III obesity (BMI ≥ 35 kg/m2) using different diagnostic criteria. Methods. SO definitions were identified from a literature review of studies using dual-energy X-ray absorptiometry (DXA) to assess LST. Demographics, anthropometrics, and body composition (by DXA) were measured in n=120, 86% female (46.9 ± 11.1 years). Results. LST was extremely variable in individuals, even with similar body sizes, and observed across the age spectrum. The prevalence of SO ranged from 0 to 84.5% in females and 0 to 100% in males, depending upon the definition applied, with higher prevalence among definitions accounting for measures of body size or fat mass. Conclusion. SO is present, yet variable, in adults with class II/III obesity. Accounting for body mass or fat mass may identify a higher number of individuals with SO, although risk prediction remains to be studied.
Author(s): Johnson Stoklossa CA, Sharma AM, Forhan M, Siervo M, Padwal RS, Prado CM
Publication type: Article
Publication status: Published
Journal: Journal of Nutrition and Metabolism
Online publication date: 22/03/2017
Acceptance date: 12/02/2017
Date deposited: 11/05/2017
ISSN (print): 2090-0724
ISSN (electronic): 2090-0732
Publisher: Hindawi Limited
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