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Nutr Hosp. 2013 Jul-Aug;28(4):1049-52. doi: 10.3305/nh.2013.28.4.6502.

Inter-methods agreement for the assessment of percentage of body fat between two laboratory methods in male adolescent cyclists.

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  • 1GENUD (Growth, Exercise, Nutrition and Development) Research Group, Aberystwysth University, Ceredigion, United Kingdom. alg28@aber.ac.uk

Abstract

in English, Spanish

OBJECTIVE:

To examine inter-methods agreement between dual energy X-ray absorptiometry (DXA) and air displacement plethysmography (ADP) in male adolescent cyclists for assessing percentage of body fat (PBF).

METHODS:

PBF of 24 male adolescent cyclists was assessed by DXA and ADP. Agreement between ADP and DXA was determined according to a Bland-Altman plot; validity and lack of agreement was assessed by calculating inter-methods difference. The limits of agreement and differences between methods were also calculated by paired t-tests. Heteroscedasticity was also examined.

RESULTS:

The values obtained by DXA were higher than those obtained by ADP, and the graph presented heteroscedasticity (both p < 0.05; r = 0.74).

CONCLUSION:

DXA and ADP methods were not comparable in terms of PBF assessment in our sample of male adolescent cyclists; it needs to be taken into account when evaluating longitudinal changes in this determined population.

Copyright © AULA MEDICA EDICIONES 2013. Published by AULA MEDICA. All rights reserved.

[PubMed - indexed for MEDLINE]
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