Table 2.
Agreement (mean ±1 s.d.) between measured and model-predicted tibiofemoral joint contact forces over five trials of normal walking
| Medial | Lateral | Total | |||||
|---|---|---|---|---|---|---|---|
| R 2, Pearson's | 0.87 | (0.03) | 0.07 | (0.08) | 0.68 | (0.08) | |
| R 2, Coefficient of determination | 0.81 | (0.05) | −1.29 | (0.92) | 0.60 | (0.09) | |
| Bias (BW) | 0.09 | (0.02) | 0.06 | (0.08) | 0.15 | (0.09) | |
| Precision (BW) | 0.24 | (0.03) | 0.42 | (0.08) | 0.48 | (0.08) | |
| RMS error (BW) | 0.26 | (0.03) | 0.42 | (0.08) | 0.51 | (0.07) | |
| Peak 1 (BW) | Predicted | 1.95 | (0.08) | 0.81 | (0.31) | 2.76 | (0.32) |
| Measured | 1.73 | (0.09) | 0.65 | (0.06) | 2.37 | (0.12) | |
| Error | 0.22 | (0.10) | 0.17 | (0.34) | 0.39 | (0.34) | |
| Peak 2 (BW) | Predicted | 1.60 | (0.17) | 1.11 | (0.13) | 2.71 | (0.17) |
| Measured | 1.56 | (0.14) | 1.05 | (0.06) | 2.60 | (0.10 | |
| Error | 0.04 | (0.23) | 0.06 | (0.14) | 0.11 | (0.20) | |