| BIA | Bioelectrical impedance analysis |
| BIS | Bioimpedance spectroscopy |
| SF-BIA | Single-frequency bioelectrical impedance analysis |
| MF-BIA | Multi-frequency bioelectrical impedance analysis |
| BIVA | Bioelectrical impedance vector analysis |
| DXA | Dual-energy X-ray absorptiometry |
| TBW | Total body water |
| ECW | Extracellular water |
| ICW | Intracellular water |
| FFM | Fat-free mass |
| FM | Fat mass |
| PhA | Phase angle |
| R | Resistance |
| XC | Capacitive reactance |
| Z | Impedance |
| LoA | Limits of agreement |
| SEE | Standard error of estimate |
| CV | Coefficient of variation |
| R0 (or RE) | Resistance of the extracellular water, measured at zero frequency (f = 0) |
| R∞ (or RINF) | Resistance at infinite frequency (f = ∞) |
| RI | Resistance of the intracellular water |
| Cm | Cell membrane capacitance |
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