Back to Search Start Over

[Comparison of body fat using anthropometry bioelectrical impedance and DEXA in elderly women].

[Comparison of body fat using anthropometry bioelectrical impedance and DEXA in elderly women].

Authors :
Barbosa AR
Santarém JM
Jacob Filho W
Meirelles ES
Marucci JM
Source :
Archivos latinoamericanos de nutricion [Arch Latinoam Nutr] 2001 Mar; Vol. 51 (1), pp. 49-56.
Publication Year :
2001

Abstract

Verify correspondence and compare percentage body fat (%BF) estimates by skinfold thickness (SKT), bioelectrical impedance analysis (BIA) and DEXA. Twenty voluntaries women (aged 62-79 yr) were assessed. The body fat was estimated using two different equations of SKT(Jackson (19); Durning and Womersley, (20)), BIA using two-predictions formulas (23) and DEXA. To compare mean values of %BF was used analysis of variance for repeated measures (ANOVA--Bonferroni), the correlation of the inter-method was verified by Pearson correlation coefficients (r), and correspondence between prediction formulas was tested by using the approach by Bland and Altman (25). The %BF assessed by BIA (23) shown poor correlation (r < 0.5) with two SKT equations. The %BF ranged from 31.5 +/- 5.5 to 41.2 +/- 6.1 (mean +/- SD) for Jackson (19) e DEXA, respectively. The analysis of variance shown no significant differences (p > 0.05) between methods and/or equations by BIA (RJL-CompCorp) vs. DC-Jackson (19). There were observed significant differences (p < 0.001) between all comparisons. The correspondence between RJL-CompCorp vs. Deurenberg (23) was good and the same was observed for DEXA vs. Durning and Womersley (20). Although the methods and/or equations used in this study have been commonly utilized to estimate BF in elderly subjects, they neither must be used as a standard method. Each method has limitations and the comparison can be useful for interpretation of results.

Details

Language :
Portuguese
ISSN :
0004-0622
Volume :
51
Issue :
1
Database :
MEDLINE
Journal :
Archivos latinoamericanos de nutricion
Publication Type :
Academic Journal
Accession number :
11519527