Cole Parameter Estimation from the Modulus of the Electrical Bioimpeadance for Assessment of Body Composition. A Full Spectroscopy Approach
Article Category: Articles
Publié en ligne: 17 oct. 2011
Pages: 72 - 78
Reçu: 25 juil. 2011
© 2011 R. Buendia, R. Gil-Pita, and F. Seoane, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Mean values for the BCA parameters of each subject
| Subject 1 | Subject 2 | Subject 3 | Subject 4 | Subject 5 |
---|
|
---|
| NLLS Z | Bioimp | NLLS Z | Bioimp | NLLS Z | Bioimp | NLLS Z | Bioimp | NLLS Z | Bioimp |
---|
TBW (l) | 56.3 | 56.4 | 32.6 | 33.0 | 49.6 | 49.7 | 50.1 | 50.4 | 33.2 | 33.4 |
ECF (l) | 28.4 | 28.4 | 17.8 | 17.7 | 26.0 | 26.0 | 26.7 | 26.6 | 20.1 | 20.1 |
ICF (l) | 27.9 | 28.0 | 14.8 | 15.3 | 23.6 | 23.7 | 23.4 | 23.8 | 13.1 | 13.4 |
FM (kg) | 22.1 | 22.0 | 15.4 | 14.8 | 26.7 | 26.5 | 15.4 | 14.9 | 27.1 | 26.8 |
Proportionality and body resistivity constants used with Bioimp
| Male | | Female |
---|
ρe | 340 | | 322 |
ρi | 859 | | 784 |
Body density (Db) | | 1.05 | |
Body proportion (Kb) | | 4.30 | |
Hydration constant (Kh) | | 0.732 | |
Mean and Standard Deviation of the estimated values for TBW in %
TBW (%) | NLLS $\left| Z \right|$-Only | Bioimp |
---|
|
---|
| Mean | SD | Mean | SD |
---|
Subject 1 | 56.88 | 0.03 | 56.93 | 0.04 |
Subject 2 | 54.40 | 0.12 | 55.11 | 0.16 |
Subject 3 | 52.53 | 0.29 | 52.66 | 0.31 |
Subject 4 | 59.78 | 0.08 | 60.19 | 0.08 |
Subject 5 | 45.86 | 0.05 | 46.11 | 0.07 |
Mean and Standard Deviation of the estimated values for FM in %
FM (%) | NLLS $\left| Z \right|$-Only | Bioimp |
---|
|
---|
| Mean | SD | Mean | SD |
---|
Subject 1 | 22.30 | 0.04 | 22.23 | 0.05 |
Subject 2 | 25.69 | 0.17 | 24.71 | 0.22 |
Subject 3 | 28.24 | 0.40 | 28.06 | 0.43 |
Subject 4 | 18.33 | 0.11 | 17.77 | 0.11 |
Subject 5 | 37.35 | 0.07 | 37.01 | 0.09 |
Mean and Standard Deviation of the estimated values for ECF in %
ECF (%) | NLLS $\left| Z \right|$-Only | Bioimp |
---|
|
---|
| Mean | SD | Mean | SD |
---|
Subject 1 | 50.45 | 0.07 | 50.33 | 0.06 |
Subject 2 | 54.62 | 0.08 | 53.75 | 0.12 |
Subject 3 | 52.48 | 0.14 | 52.29 | 0.15 |
Subject 4 | 53.31 | 0.10 | 52.72 | 0.08 |
Subject 5 | 60.48 | 0.11 | 59.99 | 0.12 |
Mean and Standard Deviation of the estimated values for ICF in %
ICF (%) | NLLS $\left| Z \right|$-Only | Bioimp |
---|
|
---|
| Mean | SD | Mean | SD |
---|
Subject 1 | 49.55 | 0.07 | 49.67 | 0.06 |
Subject 2 | 45.38 | 0.08 | 46.25 | 0.12 |
Subject 3 | 47.52 | 0.14 | 47.71 | 0.15 |
Subject 4 | 46.69 | 0.10 | 47.28 | 0.08 |
Subject 5 | 39.52 | 0.11 | 40.01 | 0.12 |
Differences obtained on the estimation of the BCA parameters
Δ (%) / (l) | (NLLS |Z|-Only) - Bioimp |
---|
| |
---|
| TBW | ECF | ICF | FM |
---|
Subject 1 | -0.04 / -0.04 | 0.12 / 0.04 | -0.12 / -0.09 | 0.06 / 0.06 |
Subject 2 | -0.71 / -0.42 | 0.87 / 0.05 | -0.87 / -0.48 | 0.97 / 0.59 |
Subject 3 | -0.13 / -0.12 | 0.19 / 0.03 | -0.19 / -0.15 | 0.18 / 0.17 |
Subject 4 | -0.41 / -0.35 | 0.59 / 0.12 | -0.59 / -0.46 | 0.57 / 0.47 |
Subject 5 | -0.25 / -0.18 | 0.49 / 0.05 | -0.49/ -0.24 | 0.34 / 0.25 |
|
Average | -0.31 / -0.22 | 0.45 / 0.06 | -0.45 / -0.28 | 0.42 / 0.31 |
Subjects body features
Subjects Features | Age (years) | Height (cm) | Weight (kg) |
---|
Subject 1 | 32 | 176 | 99.0 |
Subject 2 | 30 | 165 | 60.0 |
Subject 3 | 26 | 174 | 94.4 |
Subject 4 | 26 | 182 | 83.8 |
Subject 5 | 24 | 175 | 72.5 |