Evaluation of electrical broad bandwidth impedance spectroscopy as a tool for body composition measurement in cows in comparison with body measurements and the deuterium oxide dilution method

2017 ◽  
Vol 95 (5) ◽  
pp. 2041
Author(s):  
C. T. Schäff ◽  
U. Pliquett ◽  
A. Tuchscherer ◽  
R. Pfuhl ◽  
S. Görs ◽  
...  
Keyword(s):  
Body Composition ◽  
Impedance Spectroscopy ◽  
Deuterium Oxide ◽  
Dilution Method ◽  
Body Measurements ◽  
Broad Bandwidth ◽  
Body Composition Measurement ◽  
Composition Measurement

scholarly journals Development of a Segmental Bioelectrical Impedance Spectroscopy Device for Body Composition Measurement

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4825 ◽  
Author(s):  
Thomas Cannon ◽  
JungHun Choi
Keyword(s):  
Body Composition ◽  
Impedance Spectroscopy ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Whole Body ◽  
Body Composition Measurement ◽  
Hook Effect ◽  
Reference Device ◽  
Composition Measurement ◽  
Segmental Bioelectrical Impedance

Whole-body bioelectrical impedance analysis for measuring body composition has been well-explored but may not be sensitive enough to changes in the trunk compared to changes in the limbs. Measuring individual body segments can address this issue. A segmental bioelectrical impedance spectroscopy device (SBISD) was designed for body composition measurement and a prototype was implemented. Compensation was performed to adjust the measured values to correct for a phase difference at high frequencies and to counteract the hook effect when measuring the human body. The SBISD was used to measure five subjects and was compared against three existing analyzers. For most segmental measurements, the SBISD was within 10% of the R0 and R∞ values determined with a Bodystat Multiscan 5000 and an Impedimed SFB7. The impedance values from the third reference device, a Seca 514, differed significantly due to its eight-electrode measuring technique, meaning impedance measurements could not be compared directly.

scholarly journals Comparisons of two-, three-, and four-compartment models of body composition analysis in men and women

1998 ◽  
Vol 85 (1) ◽  
pp. 238-245 ◽  
Author(s):  
R. T. Withers ◽  
J. LaForgia ◽  
R. K. Pillans ◽  
N. J. Shipp ◽  
B. E. Chatterton ◽  
...  
Keyword(s):  
Body Composition ◽  
Compartment Model ◽  
Dry Mass ◽  
Fat Free Mass ◽  
Composition Analysis ◽  
Compartment Models ◽  
Bone Mineral Mass ◽  
Body Composition Measurement ◽  
Composition Measurement ◽  
Total Body

This study compared the traditional two-compartment (fat mass or FM; fat free mass or FFM) hydrodensitometric method of body composition measurement, which is based on body density, with three (FM, total body water or TBW, fat free dry mass)- and four (FM, TBW, bone mineral mass or BMM, residual)-compartment models in highly trained men ( n = 12), sedentary men ( n = 12), highly trained women ( n = 12), and sedentary women ( n = 12). The means and variances for the relative body fat (%BF) differences between the two- and three-compartment models [2.2 ± 1.6 (SD) % BF; n = 48] were significantly greater ( P ≤ 0.02) than those between the three- and four-compartment models (0.2 ± 0.3% BF; n = 48) for all four groups. The three-compartment model is more valid than the two-compartment hydrodensitometric model because it controls for biological variability in TBW, but additional control for interindividual variability in BMM via the four-compartment model achieves little extra accuracy. The combined group ( n = 48) exhibited greater ( P < 0.001) FFM densities (1.1075 ± 0.0049 g/cm3) than the hydrodensitometric assumption of 1.1000 g/cm3, which is based on analyses of three male cadavers aged 25, 35, and 46 yr. This was primarily because their FFM hydration (72.4 ± 1.1%; n = 48) was lower ( P ≤ 0.001) than the hydrodensitometric assumption of 73.72%.

Sign in / Sign up

Export Citation Format

Share Document