Table 3 Combined men and women assessment for test–retest reliability of dual-energy x-ray absorptiometry (DXA) and multi-frequency bioelectrical impedance analysis (MFBIA) measurements for repeated assessments for subset (n = 117).
Region | Unit | DXA ICC | DXA Bias ± SD | MFBIA ICC | MFBIA Bias ± SD | |
|---|---|---|---|---|---|---|
Fat | Arms | kg | 0.990 | −0.01 ± 0.15 | 0.995 | 0.08 ± 0.43 |
Legs | kg | 0.990 | −0.03 ± 0.47 | 0.990 | 0.13 ± 0.78 | |
Trunk | kg | 0.997 | −0.07 ± 0.48 | 0.993 | 0.17 ± 1.48 | |
Relative | % | 0.996 | −0.04 ± 0.95 | 0.993 | 0.24 ± 1.28 | |
Visceral | cm2 | 0.995 | −1.04 ± 6.45 | 0.993 | 1.18 ± 6.23 | |
Total | kg | 0.998 | −0.04 ± 0.61 | 0.994 | 0.41 ± 2.41 | |
Fat−Free | Arms | kg | 0.992 | 0.04 ± 0.39 | 0.993 | −0.10 ± 0.62 |
Legs | kg | 0.994 | −0.12 ± 0.83 | 0.987 | −0.16 ± 1.69 | |
Trunk | kg | 0.990 | −0.12 ± 0.93 | 0.994 | −0.33 ± 1.68 | |
Total | kg | 0.995 | −0.16 ± 1.52 | 0.994 | −0.59 ± 4.08 | |
Water | Total | L | N/A | N/A | 0.995 | 0.45 ± 2.59 |
Intracellular | L | N/A | N/A | 0.996 | 0.26 ± 1.57 | |
Extracellular | L | N/A | N/A | 0.993 | 0.18 ± 1.12 |
