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Lower Jump Power Rather Than Muscle Mass Itself is Associated with Vertebral Fracture in Community-Dwelling Elderly Korean Women

 Eun Young Lee  ;  Su Jin Lee  ;  Kyoung Min Kim  ;  Da Hea Seo  ;  Seung Won Lee  ;  Han Sol Choi  ;  Hyeon Chang Kim  ;  Yoosik Youm  ;  Chang Oh Kim  ;  Yumie Rhee 
 CALCIFIED TISSUE INTERNATIONAL, Vol.100(6) : 585-594, 2017 
Journal Title
Issue Date
Absorptiometry, Photon/methods ; Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; Bone Density/physiology ; Cohort Studies ; Exercise ; Female ; Humans ; Middle Aged ; Muscle, Skeletal/pathology* ; Muscular Diseases/epidemiology ; Osteoporosis/complications ; Osteoporosis/epidemiology* ; Osteoporotic Fractures/epidemiology* ; Prevalence ; Sarcopenia/epidemiology* ; Sarcopenia/physiopathology ; Spinal Fractures/epidemiology*
Elderly ; Fracture ; Jump power ; Osteoporosis ; Sarcopenia
Sarcopenia is considered to be a risk factor for osteoporotic fracture, which is a major health problem in elderly women. In this study, we aimed to investigate the association of sarcopenia, with regard to muscle mass and function, with prevalent vertebral fracture in community-dwelling elderly women. We recruited 1281 women aged 64 to 87 years from the Korean Urban Rural Elderly cohort study. Muscle mass and function were measured using bioimpedance analysis and jumping mechanography. Skeletal muscle index (SMI) and jump power were used as an indicator of muscle mass and function, respectively. Among the participants, we observed 282 (18.9%) vertebral fractures and 564 (44.0%) osteoporosis. Although age, body mass index, and prevalence of osteoporosis increased as both SMI and jump power decreased, prevalence of vertebral fracture increased only when jump power decreased. In univariate analysis, compared with the highest quartile of jump power, the lowest quartile had a significant odds ratio of 2.80 (95% CI 1.79-4.36) for vertebral fracture. This association between jump power and vertebral fracture remained significant, with an odds ratio of 3.04 (95% CI 1.77-5.23), even after adjusting for other risk factors including age, bone mineral density, previous fracture, and cognitive function. In contrast, there was no association between SMI and vertebral fracture. Based on our results, low jump power, but not SMI, is associated with vertebral fracture in community-dwelling elderly Korean women. This finding suggests that jump power may have a more important role than muscle mass itself for osteoporotic fracture.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Min(김경민)
Kim, Chang Oh(김창오) ORCID logo https://orcid.org/0000-0002-0773-5443
Kim, Hyeon Chang(김현창) ORCID logo https://orcid.org/0000-0001-7867-1240
Seo, D.(서다혜)
Lee, Su Jin(이수진) ORCID logo https://orcid.org/0000-0002-7325-2538
Rhee, Yumie(이유미) ORCID logo https://orcid.org/0000-0003-4227-5638
Choi, Han Sol(최한솔)
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