Total-body electrical conductivity (TOBEC): relationship to estimates of muscle mass, fat-free weight, and lean body mass (bibtex)
by C A Horswill, R Geeseman, R A Boileau, B T Williams, D K Layman and B H Massey
Abstract:
A comparison of methods for estimating body composition (BC) of 12 subjects was made by using fat-free weight from total-body electrical conductivity (FFWT), muscle mass from 3-methylhistidine excretion (MM3MH) and creatinine excretion (MMCRE), fat-free weight from hydrostatic weighing (FFWBD), and lean body mass from whole-body potassium counting (LBMK). Data were analyzed for day-to-day variability and regression analyses were applied to compare the different methods of measuring BC. Mean values (+/- SEM, kg) for the estimates were 53.9 +/- 3.5 (FFWT), 26.9 +/- 2.9 (MM3MH), 25.3 +/- 2.5 (MMCRE), 53.2 +/- 3.6 (FFWBD), and 52.8 +/- 3.5 (LBMK). Regression analyses revealed that TOBEC estimates of fat-free weight had an adjusted r2 (+/- SEE, kg) of 0.95 +/- 2.2, 0.50 +/- 7.9, 0.95 +/- 1.8, and 0.88 +/- 4.0 for MM3MH, MMCRE, FFWBD, and LBMK, respectively. It was concluded that TOBEC is a potentially reliable method for estimating the muscle mass within the fat-free compartment, as well as fat-free weight and lean body mass.
Reference:
Total-body electrical conductivity (TOBEC): relationship to estimates of muscle mass, fat-free weight, and lean body mass (C A Horswill, R Geeseman, R A Boileau, B T Williams, D K Layman and B H Massey), In Am J Clin Nutr, volume 49, 1989.
Bibtex Entry:
@article{Horswill:1989aa,
	abstract = {A comparison of methods for estimating body composition (BC) of 12 subjects was made by using fat-free weight from total-body electrical conductivity (FFWT), muscle mass from 3-methylhistidine excretion (MM3MH) and creatinine excretion (MMCRE), fat-free weight from hydrostatic weighing (FFWBD), and lean body mass from whole-body potassium counting (LBMK). Data were analyzed for day-to-day variability and regression analyses were applied to compare the different methods of measuring BC. Mean values (+/- SEM, kg) for the estimates were 53.9 +/- 3.5 (FFWT), 26.9 +/- 2.9 (MM3MH), 25.3 +/- 2.5 (MMCRE), 53.2 +/- 3.6 (FFWBD), and 52.8 +/- 3.5 (LBMK). Regression analyses revealed that TOBEC estimates of fat-free weight had an adjusted r2 (+/- SEE, kg) of 0.95 +/- 2.2, 0.50 +/- 7.9, 0.95 +/- 1.8, and 0.88 +/- 4.0 for MM3MH, MMCRE, FFWBD, and LBMK, respectively. It was concluded that TOBEC is a potentially reliable method for estimating the muscle mass within the fat-free compartment, as well as fat-free weight and lean body mass.},
	author = {Horswill, C A and Geeseman, R and Boileau, R A and Williams, B T and Layman, D K and Massey, B H},
	date-added = {2023-07-23 20:37:13 +0100},
	date-modified = {2023-07-23 20:37:13 +0100},
	doi = {10.1093/ajcn/49.4.593},
	journal = {Am J Clin Nutr},
	journal-full = {The American journal of clinical nutrition},
	keywords = {Protein Synthesis},
	mesh = {Adipose Tissue; Body Composition; Body Weight; Creatinine; Electric Conductivity; Female; Humans; Male; Methylhistidines; Muscles; Potassium},
	month = {Apr},
	number = {4},
	pages = {593-8},
	pmid = {2929480},
	pst = {ppublish},
	title = {Total-body electrical conductivity (TOBEC): relationship to estimates of muscle mass, fat-free weight, and lean body mass},
	volume = {49},
	year = {1989},
	bdsk-url-1 = {https://doi.org/10.1093/ajcn/49.4.593}}
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