A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young women
Introduction: Studies of obesity require the estimation of fat mass (FM) and fat-free mass (FFM); therefore it is important to validate methods that evaluate these measurements. Objective: We sought to compare two different bioelectrical impedance analysis systems (BIAs) to estimate FM and FFM using...
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Arán Ediciones, S. L.
2014-05-01
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doaj-b646d92c0ec048a8bed4b94fa68465a92020-11-25T01:59:35ZengArán Ediciones, S. L.Nutrición Hospitalaria0212-16112014-05-012951038104610.3305/nh.2014.29.5.7254S0212-16112014000500012A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young womenMaria del Consuelo Velazquez-AlvaMaria Esther Irigoyen-CamachoRaquel Huerta-HuertaJaime Delgadillo-VelazquezIntroduction: Studies of obesity require the estimation of fat mass (FM) and fat-free mass (FFM); therefore it is important to validate methods that evaluate these measurements. Objective: We sought to compare two different bioelectrical impedance analysis systems (BIAs) to estimate FM and FFM using dual-energy X-ray absorptiometry (DXA) as reference. Methods: We used a cross-sectional design. We evaluated FM and FFM using DXA and two types of BIA equipment: a foot-foot system (FFS) and a hand-footsystem (HFS). We conducted paired analysis (paired t-test). We used Bland-Altman plots to assess the relationships between FM and FFMI, limits of agreement were constructed (CL). Results: A total of 175 female students (22.9 ± 2.2 years-old) participated in the study. The paired analysis showed significant differences between the mean value of body fat percentage (BF%) estimated by BIA equipment compared to DXA (FFS = 28.7%, HFS= 34.4% and DXA= 35.3%). The mean difference between the HFS and DXA of BF% was -0.96, ((CL -5.29, 7.20). For the FFS, the mean difference was -6.69, (CL -0.29, -13.09). The paired analysis revealed significant differences between the estimates of FFMI by BIA compared to DXA (FFS =16.29, HFS =14.95, DXA =14.18). The mean difference between HFS and DXA was 0.78, and (CL -2.27, 0.72) whereas the FFS mean difference was -2.11 (CL -3.73 -0.49). Conclusion: A different magnitude of bias was observed between the BIA equipment arrays. The HFS appears to be more reliable than the FFS used, particularly in obtaining FFMI in young women.http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0212-16112014000500012&lng=en&tlng=enComposición corporalGrasa corporalDXA impedancia bioeléctricaValidación |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Maria del Consuelo Velazquez-Alva Maria Esther Irigoyen-Camacho Raquel Huerta-Huerta Jaime Delgadillo-Velazquez |
spellingShingle |
Maria del Consuelo Velazquez-Alva Maria Esther Irigoyen-Camacho Raquel Huerta-Huerta Jaime Delgadillo-Velazquez A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young women Nutrición Hospitalaria Composición corporal Grasa corporal DXA impedancia bioeléctrica Validación |
author_facet |
Maria del Consuelo Velazquez-Alva Maria Esther Irigoyen-Camacho Raquel Huerta-Huerta Jaime Delgadillo-Velazquez |
author_sort |
Maria del Consuelo Velazquez-Alva |
title |
A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young women |
title_short |
A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young women |
title_full |
A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young women |
title_fullStr |
A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young women |
title_full_unstemmed |
A comparison of dual energy X- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of Mexican young women |
title_sort |
comparison of dual energy x- ray absorptiometry and two bioelectrical impedance analyzers to measure body fat percentage and fat-free mass index in a group of mexican young women |
publisher |
Arán Ediciones, S. L. |
series |
Nutrición Hospitalaria |
issn |
0212-1611 |
publishDate |
2014-05-01 |
description |
Introduction: Studies of obesity require the estimation of fat mass (FM) and fat-free mass (FFM); therefore it is important to validate methods that evaluate these measurements. Objective: We sought to compare two different bioelectrical impedance analysis systems (BIAs) to estimate FM and FFM using dual-energy X-ray absorptiometry (DXA) as reference. Methods: We used a cross-sectional design. We evaluated FM and FFM using DXA and two types of BIA equipment: a foot-foot system (FFS) and a hand-footsystem (HFS). We conducted paired analysis (paired t-test). We used Bland-Altman plots to assess the relationships between FM and FFMI, limits of agreement were constructed (CL). Results: A total of 175 female students (22.9 ± 2.2 years-old) participated in the study. The paired analysis showed significant differences between the mean value of body fat percentage (BF%) estimated by BIA equipment compared to DXA (FFS = 28.7%, HFS= 34.4% and DXA= 35.3%). The mean difference between the HFS and DXA of BF% was -0.96, ((CL -5.29, 7.20). For the FFS, the mean difference was -6.69, (CL -0.29, -13.09). The paired analysis revealed significant differences between the estimates of FFMI by BIA compared to DXA (FFS =16.29, HFS =14.95, DXA =14.18). The mean difference between HFS and DXA was 0.78, and (CL -2.27, 0.72) whereas the FFS mean difference was -2.11 (CL -3.73 -0.49). Conclusion: A different magnitude of bias was observed between the BIA equipment arrays. The HFS appears to be more reliable than the FFS used, particularly in obtaining FFMI in young women. |
topic |
Composición corporal Grasa corporal DXA impedancia bioeléctrica Validación |
url |
http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0212-16112014000500012&lng=en&tlng=en |
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