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Appendicular skeletal muscle mass and insulin resistance in an elderly korean population: the korean social life, health and aging project-health examination cohort

Authors
 Seung Won Lee  ;  Yoosik Youm  ;  Won Joon Lee  ;  Wungrak Choi  ;  Sang Hui Chu  ;  Yeong-Ran Park  ;  Hyeon Chang Kim 
Citation
 DIABETES & METABOLISM JOURNAL, Vol.39(1) : 37-45, 2015 
Journal Title
 DIABETES & METABOLISM JOURNAL 
ISSN
 2233-6079 
Issue Date
2015
Keywords
Aged ; Insulin resistance ; Korea ; Muscle mass ; Sarcopenia
Abstract
BACKGROUND: Increasing evidence supports an association between age-related loss of muscle mass and insulin resistance. However, the association has not been fully investigated in the general population. Thus, we investigated the association between appendicular skeletal muscle mass (ASM) and insulin resistance in an elderly Korean population. METHODS: This cross-sectional study included 158 men (mean age, 71.8) and 241 women (mean age, 70.6) from the Korean Social Life, Health and Aging Project, which started in 2011. In this study, ASM was measured by bioelectrical impedance analysis and was analyzed in three forms: ASM (kg), ASM/height(2) (kg/m(2)), and ASM/weight (%). The homeostasis model assessment of insulin resistance (HOMA-IR) was used as a measure of insulin resistance. The relationships between the ASM values and the HOMA-IR were investigated by multiple linear regression models. RESULTS: The HOMA-IR was positively associated with ASM (β=0.43, P<0.0001) and ASM/height(2) (β=0.36, P<0.0001) when adjusted for sex and age. However, after additional adjustment for body weight, HOMA-IR was inversely associated with ASM (β=-0.43, P<0.001) and ASM/height(2) (β=-0.30, P=0.001). Adjustment for other potential confounders did not change these associations. Conversely, HOMA-IR was consistently and inversely associated with ASM/weight before and after adjustment for other potential confounders. CONCLUSION: Our results support the idea that lower skeletal muscle mass is independently associated with insulin resistance in older adults. When evaluating sarcopenia or muscle-related conditions in older adults, their whole body sizes also need to be considered.
Files in This Item:
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DOI
10.4093/dmj.2015.39.1.37
Appears in Collections:
3. College of Nursing (간호대학) > Dept. of Nursing (간호학과) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyeon Chang(김현창) ORCID logo https://orcid.org/0000-0001-7867-1240
Lee, Won Joon(이원준)
Choi, Wungrak(최웅락) ORCID logo https://orcid.org/0000-0002-3015-2502
Chu, Sang Hui(추상희) ORCID logo https://orcid.org/0000-0001-6877-5599
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/139547
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