| Test Subject #1 | |||||||||||||
| Training Set | # Samples | Hip Flex–Ext | Hip Ad–Ab | Hip Int–Ext | Hip Average | ||||||||
| r | RMSE (°) | nRMSE | r | RMSE (°) | nRMSE | r | RMSE (°) | nRMSE | r | RMSE (°) | nRMSE | ||
| Measured | 3943 | 0.97 ± 0.02 |
3.4 ± 1.1 |
7.3 ± 2.4 |
0.94 ± 0.04 | 2.0 ± 0.6 |
9.4 ± 3.0 |
0.84 ± 0.08 | 2.0 ± 0.6 |
11.2 ± 3.4 |
0.92 ± 0.04 |
2.4 ± 0.8 |
9.3 ± 2.9 |
| Synthetic | 17,255 | 0.97 ± 0.04 |
0.97 ± 0.04 |
3.7 ± 1.7 |
0.94 ± 0.09 | 2.2 ± 0.7 |
10.6 ± 3.3 |
0.70 ± 0.15 | 2.7 ± 0.8 |
15.3 ± 4.6 |
0.87 ± 0.09 |
2.9 ± 1.1 |
11.2 ± 3.8 |
| Measured + Synthetic | 20,706 | 0.97 ± 0.01 |
0.97 ± 0.01 |
3.5 ± 0.9 |
0.96 ± 0.02 | 1.6 ± 0.4 |
7.4 ± 1.8 |
0.87 ± 0.08 | 2.0 ± 0.5 |
11.1 ± 2.8 |
0.94 ± 0.04 |
2.4 ± 0.6 |
8.7 ± 2.2 |
| Training Set | # Samples | Knee Flex–Ext | Knee Ad–Ab | Knee Int–Ext | Knee Average | ||||||||
| r | RMSE (°) | nRMSE | r | RMSE (°) | nRMSE | r | RMSE (°) | nRMSE | r | RMSE (°) | nRMSE | ||
| Measured | 3943 | 0.99 ± 0.01 |
2.2 ± 0.7 |
3.0 ± 0.9 |
0.49 ± 0.20 | 1.9 ± 0.5 |
14.3 ± 3.6 | 0.69 ± 0.11 | 4.6 ± 0.9 |
23.5 ± 4.6 | 0.72 ± 0.10 |
2.9 ± 0.7 |
13.6 ± 30.0 |
| Synthetic | 17,255 | 0.99 ± 0.01 |
2.3 ± 0.7 |
3.1 ± 0.9 |
0.76 ± 0.10 | 2.2 ± 0.6 |
16.9 ± 4.3 | 0.85 ± 0.06 | 2.6 ± 0.4 |
13.3 ± 2.3 | 0.87 ± 0.06 |
2.4 ± 0.6 |
11.1 ± 2.5 |
| Measured + Synthetic | 20,706 | 0.99 ± 0.01 |
1.6 ± 0.4 |
2.2 ± 0.6 |
0.91 ± 0.06 | 0.9 ± 0.3 |
7.0 ± 2.0 |
0.94 ± 0.04 | 2.1 ± 0.5 |
10.5 ± 2.7 | 0.95 ± 0.03 |
1.5 ± 0.4 |
6.6 ± 1.8 |