Ethnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.

BACKGROUND: Ethnic differences in the association between body mass index (BMI) and body fat suggest that body composition varies across ethnic groups. OBJECTIVE: To investigate the association between impedance index - a measure of tissue resistivity - and BMI in adults of different ethnic groups (...

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Autori principali: Siervo, M, Davies, A, Jebb, SA, Jalil, F, Moore, SE, Prentice, A
Natura: Journal article
Lingua:English
Pubblicazione: 2007
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author Siervo, M
Davies, A
Jebb, SA
Jalil, F
Moore, SE
Prentice, A
author_facet Siervo, M
Davies, A
Jebb, SA
Jalil, F
Moore, SE
Prentice, A
author_sort Siervo, M
collection OXFORD
description BACKGROUND: Ethnic differences in the association between body mass index (BMI) and body fat suggest that body composition varies across ethnic groups. OBJECTIVE: To investigate the association between impedance index - a measure of tissue resistivity - and BMI in adults of different ethnic groups (Asian Indians, West Africans and White Caucasians) living in their native countries. METHODS: Male (n=329) and female (n=277) adult subjects (18-50 years) living in urban areas in the UK, The Gambia and Pakistan were studied. Body weight and height were measured and BMI calculated. The same leg-to-leg bioimpedance instrument was used in each study and impedance index (height(2) (cm)/impedance (Omega)) used as measure of tissue resistivity. RESULTS: In women, Asian Indians and West Africans had a significantly greater increase in impedance index per unit increase in BMI compared with white Caucasians (P<0.001). In men, Asian Indians had a significantly lower impedance index compared with West Africans and white Caucasians (P<0.001). CONCLUSION: Different ethnic groups may have different tissue resistivity for the same BMI indicative of systematic differences in body composition.
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spelling oxford-uuid:db22345a-6c3e-470c-87f1-a12fcace13142022-03-27T09:08:12ZEthnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:db22345a-6c3e-470c-87f1-a12fcace1314EnglishSymplectic Elements at Oxford2007Siervo, MDavies, AJebb, SAJalil, FMoore, SEPrentice, ABACKGROUND: Ethnic differences in the association between body mass index (BMI) and body fat suggest that body composition varies across ethnic groups. OBJECTIVE: To investigate the association between impedance index - a measure of tissue resistivity - and BMI in adults of different ethnic groups (Asian Indians, West Africans and White Caucasians) living in their native countries. METHODS: Male (n=329) and female (n=277) adult subjects (18-50 years) living in urban areas in the UK, The Gambia and Pakistan were studied. Body weight and height were measured and BMI calculated. The same leg-to-leg bioimpedance instrument was used in each study and impedance index (height(2) (cm)/impedance (Omega)) used as measure of tissue resistivity. RESULTS: In women, Asian Indians and West Africans had a significantly greater increase in impedance index per unit increase in BMI compared with white Caucasians (P<0.001). In men, Asian Indians had a significantly lower impedance index compared with West Africans and white Caucasians (P<0.001). CONCLUSION: Different ethnic groups may have different tissue resistivity for the same BMI indicative of systematic differences in body composition.
spellingShingle Siervo, M
Davies, A
Jebb, SA
Jalil, F
Moore, SE
Prentice, A
Ethnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.
title Ethnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.
title_full Ethnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.
title_fullStr Ethnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.
title_full_unstemmed Ethnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.
title_short Ethnic differences in the association between body mass index and impedance index (Ht2/Z) in adult women and men using a leg-to-leg bioimpedance method.
title_sort ethnic differences in the association between body mass index and impedance index ht2 z in adult women and men using a leg to leg bioimpedance method
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