Document Detail


Comparison of body composition with bioelectric impedance (BIA) and dual energy X-ray absorptiometry (DEXA) among Singapore Chinese.
MedLine Citation:
PMID:  20619734     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The purpose of the study was to determine the agreement of bioelectric impedance (BIA) with dual energy X-ray absorptiometry (DEXA) among Singapore Chinese adults. Hundred subjects [63 healthy males (age: 25.2±0.5 yrs; weight: 69.7±1.9 kg; BMI: 22.8±0.4 kg m⁻²) and 37 females (age: 22.9±0.3 yrs; weight: 51.8±0.8 kg; BMI: 20.2±0.4 kg m⁻²)] were selected and body fat percentage (%BF) was measured by DEXA and BIA. Paired t test and coefficient of correlation statistics were utilized to compare the relationship between %BF(BIA) and %BF(DEXA). Bland and Altman plot was employed to investigate the agreement of %BF(BIA) with %BF(DEXA). The limits of agreement between different methods were defined as mean (M; bias)±1.96SD of the difference between the methods (95% confidence interval; CI). %BF(BIA), when compared to %BF(DEXA), revealed non-significant underestimation of %BF in females (24.1%<24.4%, p>0.05) and significant overestimation in males (15.5%<17.7%, p<0.01). There was good absolute agreement between %BF(BIA) and %BF(DEXA) among the whole cohort (1.3±6.9%) as well as among both genders (male: 2.2±6.7%, female: -0.3±6.1%) due to small mean differences between both methods. However, wider limits of agreement were revealed for %BF(BIA) among whole cohort and as well as on gender basis. The results indicate a good agreement between BIA and DEXA in measuring %BF among Singapore Chinese adults, but may not be a suitable method of measuring %BF for clinical purposes among this population due to wider limits of agreement.
Authors:
Nidhi Gupta; Govindasamy Balasekaran; Visvasuresh Victor Govindaswamy; Chia Yong Hwa; Lim Meng Shun
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Publication Detail:
Type:  Journal Article     Date:  2010-07-08
Journal Detail:
Title:  Journal of science and medicine in sport / Sports Medicine Australia     Volume:  14     ISSN:  1878-1861     ISO Abbreviation:  J Sci Med Sport     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-12-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812598     Medline TA:  J Sci Med Sport     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  33-5     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Affiliation:
National Institute of Education, Nanyang Technological University, Singapore.
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