CHANGES IN BODY-FAT - MEASUREMENTS BY NEUTRON-ACTIVATION, DENSITOMETRY AND DUAL-ENERGY X-RAY ABSORPTIOMETRY

Authors
RYDE SJS ESTON R LASKEY MA EVANS CJ HANCOCK DA
Citation
Sjs. Ryde et al., CHANGES IN BODY-FAT - MEASUREMENTS BY NEUTRON-ACTIVATION, DENSITOMETRY AND DUAL-ENERGY X-RAY ABSORPTIOMETRY, Applied radiation and isotopes, 49(5-6), 1998, pp. 507-509
Citations number
10
Categorie Soggetti
Nuclear Sciences & Tecnology","Radiology,Nuclear Medicine & Medical Imaging","Chemistry Inorganic & Nuclear
Journal title
Applied radiation and isotopes
ISSN journal
09698043 → ACNP
Volume
49
Issue
5-6
Year of publication
1998
Pages
507 - 509
Database
ISI
SICI code
0969-8043(1998)49:5-6<507:CIB-MB>2.0.ZU;2-V
Abstract
The measurement of body fat in ten subjects (BMI from 22 to 43 kg/m(2) ), and in particular the changes arising from a ketogenic diet, by the techniques of in vivo neutron activation analysis (NAA), densitometry (using two-and four-compartment models) by under water weighing (UWW) and dual energy X-ray absorptiometry (DXA) was compared. The associat ion between techniques for the fat changes was' generally high (r = 0. 70 to 0.98) and significant (p < 0.05). Assessment of agreement betwee n DXA and the other techniques revealed discrepancies with significant slope and high association (r = -0.81 and -0.64). Whilst NAA and UWW appeared to measure similar changes, DXA underestimated small changes. (C) 1998 Elsevier Science Ltd. All rights reserved.