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The diagnostic value of phase angle, an integrative bioelectrical marker, for identifying individuals with dysmobility syndrome: the Korean Urban-Rural Elderly study

Authors
 Y W Jung  ;  N Hong  ;  C O Kim  ;  H C Kim  ;  Y Youm  ;  J -Y Choi  ;  Y Rhee 
Citation
 OSTEOPOROSIS INTERNATIONAL, Vol.32(5) : 939-949, 2021-05 
Journal Title
 OSTEOPOROSIS INTERNATIONAL 
ISSN
 0937-941X 
Issue Date
2021-05
MeSH
Aged ; Female ; Humans ; Independent Living ; Male ; Osteoporosis* / diagnosis ; Osteoporosis* / epidemiology ; Republic of Korea / epidemiology ; Sarcopenia* / diagnosis ; Sarcopenia* / epidemiology ; Syndrome
Keywords
Aging ; Bioelectric impedance analysis ; Falls ; Obesity ; Osteoporosis ; Sarcopenia
Abstract
Low phase angle, a non-invasive bioimpedance marker, is associated with elevated odds of dysmobility syndrome and its components. Phase angle (estimated cutoffs: < 4.8° in men; < 4.5° in women) can be used to detect dysmobility syndrome in community-dwelling older adults as a simple, integrative screening tool. Introduction: Dysmobility syndrome uses a score-based approach to predict fracture risk that incorporates the concepts of osteoporosis, sarcopenia, and obesity. Low phase angle (PhA), a simple, non-invasive bioelectrical impedance marker, was associated with low lean mass, high fat mass, and poor muscle function. We aimed to investigate the association between PhA and dysmobility syndrome, with the exploration of the diagnostic cutoffs. Methods: In a community-dwelling Korean older adult cohort, dysmobility syndrome was defined as the presence of ≥ 3 of the following components: osteoporosis, low lean mass, falls in the preceding year, low grip strength, high fat mass, and poor timed up and go performance. Results: Among the 1825 participants (mean age 71.6, women 66.7%), subjects were classified into sex-stratified PhA tertiles. The prevalence of dysmobility syndrome increased from the highest PhA tertile group to the lowest (15.50 to 2.45% in men; 33.41 to 12.25% in women, P for trend < 0.001). The mean PhA values decreased as the dysmobility score increased (5.33° to 4.65° in men; 4.76° to 4.39° in women, P for trend < 0.001). Low PhA (cutoff: < 4.8° in men; < 4.5° in women) was associated with twofold elevated odds of dysmobility syndrome after adjusting for age, sex, and conventional risk factors. Low PhA improved the identification of individuals with dysmobility syndrome when added to the conventional risk model (area under the curve, 0.73 to 0.75, P = 0.002). Conclusion: Low PhA was associated with dysmobility syndrome and its components, independent of age, sex, body mass index, nutritional status, and inflammation.
Full Text
https://link.springer.com/article/10.1007%2Fs00198-020-05708-2
DOI
10.1007/s00198-020-05708-2
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
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
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
Rhee, Yumie(이유미) ORCID logo https://orcid.org/0000-0003-4227-5638
Choi, Jin Young(최진영) ORCID logo https://orcid.org/0000-0002-9025-6274
Hong, Nam Ki(홍남기) ORCID logo https://orcid.org/0000-0002-8246-1956
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/182925
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