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Prediction of fat-free body mass from bioelectrical impedance among 9-to 11-year-old Swedish children

Nielsen, B. M.; Dencker, Magnus LU ; Ward, L.; Lindén, Christian LU ; Thorsson, Ola LU ; Karlsson, Magnus LU and Heitmann, B. L. (2007) In Diabetes, Obesity and Metabolism 9(4). p.521-539
Abstract
Aim: Predictive equations for estimating body composition from bioelectrical impedance analysis (BIA) among Scandinavian children are lacking. In the present study, equations for estimation of fat-free body mass (FFM) and lean tissue mass (LTM) were developed and cross-validated from BIA using dual-energy X-ray absorptiometry (DXA) as the reference measurement of body composition. Methods: The study population consisted of 49 girls and 52 boys aged 9-11 years from Malmo, Sweden. Bioelectrical impedance was measured between hand and foot at 50 kHz. Predictive equations were developed by multiple linear regression and cross-validated against DXA measurements of body composition. Results: FFM was predicted from BIA and anthropometric... (More)
Aim: Predictive equations for estimating body composition from bioelectrical impedance analysis (BIA) among Scandinavian children are lacking. In the present study, equations for estimation of fat-free body mass (FFM) and lean tissue mass (LTM) were developed and cross-validated from BIA using dual-energy X-ray absorptiometry (DXA) as the reference measurement of body composition. Methods: The study population consisted of 49 girls and 52 boys aged 9-11 years from Malmo, Sweden. Bioelectrical impedance was measured between hand and foot at 50 kHz. Predictive equations were developed by multiple linear regression and cross-validated against DXA measurements of body composition. Results: FFM was predicted from BIA and anthropometric variables with an adjusted R-2 = 0.95 and root mean square error (RMSE) = 0.84 kg, and LTM was predicted with an adjusted R-2 = 0.95 and RMSE = 0.87 kg. Cross-validation revealed a mean RMSE = 0.95 kg FFM and a mean RMSE = 0.96 kg LTM. Prediction of body composition from equations developed in previous literature was mixed when applied to the present cohort of children. Conclusions: FFM and LTM are predicted with sufficient accuracy at the population level. We recommend that the predictive equations developed in the present study are used in prepubescent European children aged 9-11 years only in order to minimize confounding of results because of possible differences in population samples. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
dual-energy X-ray absorptiometry, children, bioelectrical impedance analysis, body composition
in
Diabetes, Obesity and Metabolism
volume
9
issue
4
pages
521 - 539
publisher
Wiley-Blackwell
external identifiers
  • wos:000247476100010
  • scopus:34347383176
ISSN
1462-8902
DOI
10.1111/j.1463-1326.2006.00634.x
language
English
LU publication?
yes
id
85be644f-ad53-4112-9d86-ee41c6102494 (old id 651106)
date added to LUP
2007-12-18 13:42:41
date last changed
2017-09-17 04:42:40
@article{85be644f-ad53-4112-9d86-ee41c6102494,
  abstract     = {Aim: Predictive equations for estimating body composition from bioelectrical impedance analysis (BIA) among Scandinavian children are lacking. In the present study, equations for estimation of fat-free body mass (FFM) and lean tissue mass (LTM) were developed and cross-validated from BIA using dual-energy X-ray absorptiometry (DXA) as the reference measurement of body composition. Methods: The study population consisted of 49 girls and 52 boys aged 9-11 years from Malmo, Sweden. Bioelectrical impedance was measured between hand and foot at 50 kHz. Predictive equations were developed by multiple linear regression and cross-validated against DXA measurements of body composition. Results: FFM was predicted from BIA and anthropometric variables with an adjusted R-2 = 0.95 and root mean square error (RMSE) = 0.84 kg, and LTM was predicted with an adjusted R-2 = 0.95 and RMSE = 0.87 kg. Cross-validation revealed a mean RMSE = 0.95 kg FFM and a mean RMSE = 0.96 kg LTM. Prediction of body composition from equations developed in previous literature was mixed when applied to the present cohort of children. Conclusions: FFM and LTM are predicted with sufficient accuracy at the population level. We recommend that the predictive equations developed in the present study are used in prepubescent European children aged 9-11 years only in order to minimize confounding of results because of possible differences in population samples.},
  author       = {Nielsen, B. M. and Dencker, Magnus and Ward, L. and Lindén, Christian and Thorsson, Ola and Karlsson, Magnus and Heitmann, B. L.},
  issn         = {1462-8902},
  keyword      = {dual-energy X-ray absorptiometry,children,bioelectrical impedance analysis,body composition},
  language     = {eng},
  number       = {4},
  pages        = {521--539},
  publisher    = {Wiley-Blackwell},
  series       = {Diabetes, Obesity and Metabolism},
  title        = {Prediction of fat-free body mass from bioelectrical impedance among 9-to 11-year-old Swedish children},
  url          = {http://dx.doi.org/10.1111/j.1463-1326.2006.00634.x},
  volume       = {9},
  year         = {2007},
}