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Segmental bioelectrical impedance analysis in children aged 8-12 y: 2. The assessment of regional body composition and muscle mass

Segmental bioelectrical impedance analysis in children aged 8-12 y: 2. The assessment of regional body composition and muscle mass
Segmental bioelectrical impedance analysis in children aged 8-12 y: 2. The assessment of regional body composition and muscle mass
Objectives: To investigate the potential of segmental bioelectrical impedance analysis (BIA) for assessing regional composition and muscle mass in children.
Design: Strengths of relationships were determined between (a) BIA indices of trunk, limbs or limb segments and (b) segment fat or fat-free mass (FFM) assessed using dual-energy X-ray absorptiometry (DXA); the extent of agreement was established between two independent models, based on DXA and BIA, of limb muscle and adipose tissue (AT) mass.
Subjects: Eighteen boys and 19 girls aged 8-12 y.
Measurements: BIA and anthropometry of trunk, whole limbs, limb segments and defined sections were used to calculate segmental impedance indices and specific resistivities; segment fat and FFM were obtained using DXA; muscle and AT masses of limbs, segments and sections were estimated using DXA and BIA models, and by anthropometry.
Results: Segmental BIA indices were significantly related to composition of the segments assessed using DXA; although substantial bias was observed, there was fairly good agreement (low 95% limits of agreement) between the BIA and DXA models of muscle mass and estimates from each were similarly categorised in tertiles, as were estimates of AT.
Conclusion: Segmental BIA appears to have potential for assessing in children the composition of body segments, as obtained using DXA, and the masses of muscle and AT in whole limbs, limb segments and defined sections.
segment fat, segment fat-free mass, muscle, adipose tissue, specific resistivity
692-700
Fuller, N. J.
ba40a22c-6f8e-4e83-9c24-0e0755975d7e
Fewtrell, M. S.
c82d3786-239e-46b1-9e7a-ec5dae77ee15
Dewit, O.
685c578d-62da-4968-9a29-6c994a1db8b5
Elia, M.
964bf436-e623-46d6-bc3f-5dd04c9ef4c1
Wells, J. C.
e5748197-0b2c-43a2-9723-ce38d626deb8
Fuller, N. J.
ba40a22c-6f8e-4e83-9c24-0e0755975d7e
Fewtrell, M. S.
c82d3786-239e-46b1-9e7a-ec5dae77ee15
Dewit, O.
685c578d-62da-4968-9a29-6c994a1db8b5
Elia, M.
964bf436-e623-46d6-bc3f-5dd04c9ef4c1
Wells, J. C.
e5748197-0b2c-43a2-9723-ce38d626deb8

Fuller, N. J., Fewtrell, M. S., Dewit, O., Elia, M. and Wells, J. C. (2002) Segmental bioelectrical impedance analysis in children aged 8-12 y: 2. The assessment of regional body composition and muscle mass. International Journal of Obesity and Related Metabolic Disorders, 26 (5), 692-700. (doi:10.1038/sj/ijo/0801989).

Record type: Article

Abstract

Objectives: To investigate the potential of segmental bioelectrical impedance analysis (BIA) for assessing regional composition and muscle mass in children.
Design: Strengths of relationships were determined between (a) BIA indices of trunk, limbs or limb segments and (b) segment fat or fat-free mass (FFM) assessed using dual-energy X-ray absorptiometry (DXA); the extent of agreement was established between two independent models, based on DXA and BIA, of limb muscle and adipose tissue (AT) mass.
Subjects: Eighteen boys and 19 girls aged 8-12 y.
Measurements: BIA and anthropometry of trunk, whole limbs, limb segments and defined sections were used to calculate segmental impedance indices and specific resistivities; segment fat and FFM were obtained using DXA; muscle and AT masses of limbs, segments and sections were estimated using DXA and BIA models, and by anthropometry.
Results: Segmental BIA indices were significantly related to composition of the segments assessed using DXA; although substantial bias was observed, there was fairly good agreement (low 95% limits of agreement) between the BIA and DXA models of muscle mass and estimates from each were similarly categorised in tertiles, as were estimates of AT.
Conclusion: Segmental BIA appears to have potential for assessing in children the composition of body segments, as obtained using DXA, and the masses of muscle and AT in whole limbs, limb segments and defined sections.

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Published date: 2002
Keywords: segment fat, segment fat-free mass, muscle, adipose tissue, specific resistivity

Identifiers

Local EPrints ID: 25508
URI: http://eprints.soton.ac.uk/id/eprint/25508
PURE UUID: c481c181-ab2f-45da-b4e4-ea83f25d7cd7

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Date deposited: 07 Apr 2006
Last modified: 15 Mar 2024 07:03

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Contributors

Author: N. J. Fuller
Author: M. S. Fewtrell
Author: O. Dewit
Author: M. Elia
Author: J. C. Wells

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