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Low peak jump power is associated with elevated odds of dysmobility syndrome in community-dwelling elderly individuals: the Korean Urban Rural Elderly (KURE) study

Authors
 Namki Hong  ;  Chang Oh Kim  ;  Yoosik Youm  ;  Hyeon Chang Kim & Yumie Rhee 
Citation
 Osteoporosis International, Vol.29 : 1427-1436, 2018 
Journal Title
 Osteoporosis International 
ISSN
 0937-941X 
Issue Date
2018
Keywords
Dysmobility syndrome ; Fracture ; Jump power ; Obesity ; Sarcopenia
Abstract
In a community-dwelling elderly cohort (Korean Urban Rural Elderly), low peak jump power was associated with elevated odds of dysmobility syndrome and its components, independent of age and comorbidities. Jump power measurement improved discrimination of individuals with dysmobility syndrome when added to conventional risk factors. INTRODUCTION: Dysmobility syndrome was proposed to encompass the risks affecting musculoskeletal outcomes. Jump power measurement is a safe, reproducible high-intensity test for physical function in elderly. However, the relationship between jump power and dysmobility syndrome remains unknown. METHODS: A total of 1369 subjects (mean 71.6 years; women, 66%) were analyzed from a community-based cohort. Dysmobility syndrome was defined as the presence of ≥ 3 factors among falls in the preceding year, low lean mass, high fat mass, osteoporosis, low grip strength, and low timed get-up-and-go (TUG) performance. Subjects were grouped into tertiles of jump power relative to weight based on sex-stratified cutoffs (32.4 and 27.6 W/kg in men; 23.9 and 19.9 W/kg in women) or into the failed-to-jump group. RESULTS: The prevalence of dysmobility syndrome was 20% overall, increasing from the highest (T1) to lowest (T3) jump power tertile (1, 11, 15% in men; 11, 16, 39% in women) and the failed-to-jump group (39% in men; 48% in women). Low jump power or failed-to-jump was associated with elevated odds of dysmobility syndrome (T3 vs. T1, adjusted odds ratio [aOR] 4.35, p < 0.001; failed-to-jump vs. T1, aOR 7.60, p < 0.001) and its components including falls, low lean mass, high fat mass, and poor TUG performance but not osteoporosis after adjustment for covariates. Jump power modestly discriminated dysmobility syndrome (area under the curve [AUC], 0.71, p < 0.001), which improved discriminatory performance when added to conventional risk factors (AUC, from 0.75 to 0.79, p < 0.001). CONCLUSIONS: Low peak jump power was associated with elevated odds of dysmobility syndrome and its components, independent of age and comorbidities.
Full Text
https://link.springer.com/article/10.1007%2Fs00198-018-4466-0
DOI
10.1007/s00198-018-4466-0
Appears in Collections:
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
김창오(Kim, Chang Oh) ORCID logo https://orcid.org/0000-0002-0773-5443
김현창(Kim, Hyeon Chang) ORCID logo https://orcid.org/0000-0001-7867-1240
이유미(Rhee, Yumie) ORCID logo https://orcid.org/0000-0003-4227-5638
홍남기(Hong, Nam Ki) ORCID logo https://orcid.org/0000-0002-8246-1956
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/163230
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