Table 3.
Prediction equation for fat-free mass (n = 78).
| Developed equation | Cross-Validated equation | ||||||||
| Intercept | Age | H2/R | BW(kg) | Xc (Ω) | R2 | MSE (kg) | SQRRMSE (kg) | Pure Error | |
| - 2.4658 | - 0.1773 | 0.7374 | 0.1763 | 0.1198 | 0.969 | 3.97 | 1.99 | 2.96 | |
| R2 increase when this IV is added | - | 0.0038 | 0.9323 | 0.0281 | 0.0047 | - | - | - | - |
| Total R2 for this IV and the rest | - | 0.0038 | 0.9361 | 0.9642 | 0.9689 | - | - | - | - |
| R2 when this IV is fit alone | - | 0.0038 | 0.9149 | 0.7273 | 0.0256 | - | - | - | - |
| Partial R2 adjusted for other IVs | - | 0.2920 | 0.8767 | 0.420 | 0.1303 | - | - | - | - |
Ht2/R = Height2 (cm)/resistance (Ω); BW = Body weight (kg); Xc = reactance (Ω); MSE = Mean square error, SQRMSE = Square root of MSE; IV = independent variable.