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- Title
Body Composition Analysis by Using Bioelectrical Impedance in a Young Healthy Chinese Population: Methodological Considerations.
- Authors
Wei Chen; Hua Jiang; Jiong-xian Yang; Hao Yang; Jing-min Liu; Xiu-yuan Zhen; Lian-jun Feng; Jian-chun Yu; Chen, Wei; Jiang, Hua; Yang, Jiong-Xian; Yang, Hao; Liu, Jing-Min; Zhen, Xiu-Yuan; Feng, Lian-Jun; Yu, Jian-Chun
- Abstract
<bold>Objective: </bold>To develop a new bioelectrical impedance analysis (BIA) model for analyzing body composition by using isotope dilution, magnetic resonance imaging (MRI), and dual-energy X-ray absorptiometry (DEXA) as the reference methods in young healthy Chinese populations.<bold>Methods: </bold>Thirty healthy participants were enrolled. Their body composition was analyzed using BIA and 3 reference methods. We established a model that uniformed data from 3 references methods (isotope, MRI, and DEXA) into 1 formula. This model was further validated with 209 participants.<bold>Results: </bold>The following BIA body composition adjustment model was developed: [Formula: see text], where X represents the impedance index; when K = 1, 2, and 3, Y represents total body water, fat mass, and bone mass, respectively. The prediction accuracy of this formula was 93.3%. By incorporating the data matrix, the protein mass was calculated using BIA: [Formula: see text]. In the verification part of this study, the lean body mass measured using DEXA and BIA was 43.02 ± 8.34 kg and 45.85 ± 8.81 kg, respectively. Analysis indicated that the model fit was extremely favorable ( R2 = .9997, P < .001).<bold>Conclusions: </bold>The accuracy of BIA measurement on body composition and protein mass is significantly improved by our work.
- Subjects
BODY composition; BIOELECTRIC impedance; X-ray absorption; CHINESE people; ISOTOPES; MAGNETIC resonance imaging; ADIPOSE tissues; ALGORITHMS; BIOLOGICAL models; HUMAN body composition; BONE growth; COMPARATIVE studies; HEALTH status indicators; INDICATOR dilution; RESEARCH methodology; MEDICAL cooperation; MUSCULOSKELETAL system; REFERENCE values; RESEARCH; WATER in the body; EVALUATION research; BODY mass index; PHOTON absorptiometry
- Publication
Food & Nutrition Bulletin, 2017, Vol 38, Issue 2, p172
- ISSN
0379-5721
- Publication type
journal article
- DOI
10.1177/0379572117697534