Table 3. Percentage difference between the mean measured resistance and reactance relative error (n = 5 subjects) and the predicted relative error at 50 kHz and averaged over 133 frequencies between 10 and 200 kHz.
| kHz | % | HC | HP | LP | LC | |
|---|---|---|---|---|---|---|
| x-axis | 50 | ±25{±25, ±50} | 2.4 ± 1.95.9 ± 3.5 | 3.8 ± 2.39.8 ± 4.3 | 4.5 ± 3.25.8 ± 3.9 | 4.2 ± 3.36.2 ± 4.6 |
| 10–200† | {±25, ±50} | 6.0 ± 3.5 | 9.9 ± 4.2 | 6.0 ± 4.2 | 6.4 ± 4.3 | |
| y-axis | 50 | ±25{±25, ±50} | 1.6 ± 1.21.9 ± 0.9 | 3.7 ± 1.54.7 ± 2.5 | 4.4 ± 2.16.5 ± 3.0 | 2.4 ± 1.02.6 ± 1.2 |
| 10–200† | {±25, ±50} | 2.0 ± 0.6 | 4.5 ± 2.4 | 6.3 ± 3.5 | 2.6 ± 1.3 |
The electrodes’ misplacements considered in the x and y axes are {−25, 25}% and {−50, −25, 25, 50}%. The comparison between multi-frequency and single-frequency 50 kHz data was found to be not statistically different (p values above 0.55 in both directions). Electrodes nomenclature: HC, high current; HP, high potential; LP, low potential; LC, low current. Values are reported as mean ± standard deviation.
†133 frequencies.