Body composition assessment: dual-energy x-ray absorptiometry (DEXA) compared to reference methods
Article Abstract:
Body composition was measured among 55 subjects using the dual energy x-ray absorptiometry (DEXA). DEXA values for bone mineral content (BMC) and bone mineral density were significantly correlated to densitometric fat free mass, fat-free mass minus bone component and the ratio of low to high energy attenuation in soft tissues (%FatDEXA). There is a difference however, in male standard and %FatDEXA values. However, despite an underestimation of body fat by three to four percent, DEXA proves to be adequately reliable in measuring fat free mass for both male and female.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 1992
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Use of multi-frequency bioelectrical impedance analysis for the estimation of extracellular fluid
Article Abstract:
Total body water (TBW) and extracellular fluid (ECF) were measured by isotope dilution and the value for intracellular fluid was derived from the difference between TBW and ECF. The relationship between total body fluid compartments and multi-frequency bioelectrical impedance (MF-BIA) was then studied using a tetrapolar arrangement of surface electrodes at frequencies ranging from 1.0 to 1.35 megahertz . The values using MF-BIA were compared to isotope measurements. Correlations ranged from 0.93 to 0.84 showing that MF-BIA can be used to measure ECF and TBW.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 1992
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Body composition analysis by dual energy x-ray absorptiometry in female diabetics differ between manufacturers
Article Abstract:
Results of the body composition analysis of 85 female diabetes mellitus patients differed with the use of instruments. The instruments used were the Lunar DPX machine and the QDR 2000 which are both dual energy x-ray absorptiometry scanners. The total body bone mineral content and total body bone mineral density were higher when using the Lunar DPX machine than by the QDR 2000. Fat percentage, however, was 3.7% lower when using Lunar DPX than by QDR 2000.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 1997
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