Table 2.
Stepwise multiple regression predictors for completion time, exit velocity and peak KAMs
| Block | Variable | r | r2 (%) | Adjusted r2 (%) | r2 change (%) | Adjusted r2 change (%) | B | Standard error β | β |
|---|---|---|---|---|---|---|---|---|---|
| Completion time predictors | |||||||||
| 1 | Exit velocity | 0.733 | 0.538 (53.8) | 0.530 (53.0) | 0.538 (53.8) | 0.530 (53.0) | – 0.237 | 0.045 | -0.536** |
| 2 | FFC peak RPF | 0.746 | 0.557 (55.7) | 0.541 (54.1) | 0.019 (1.9) | 0.012 (1.2) | – 0.022 | 0.036 | -0.062* |
| 3 | PFC mean HBF | 0.785 | 0.616 (61.6) | 0.595 (59.5) | 0.059 (5.9) | 0.054 (5.4) | 0.305 | 0.106 | 0.260* |
| 4 | IFPA | 0.801 | 0.642 (64.2) | 0.616 (61.6) | 0.026 (2.6) | 0.021 (2.1) | – 0.002 | 0.001 | -0.177* |
| Exit velocity predictors | |||||||||
| 1 | FFC peak MLPF | 0.651 | 0.432 (42.3) | 0.413 (41.3) | 0.432 (42.3) | 0.413 (41.3) | 0.683 | 0.179 | 0.440** |
| 2 | FFC KFM | 0.690 | 0.478 (47.8) | 0.457 (45.7) | 0.052 (5.2) | 0.044 (4.4) | 0.114 | 0.050 | 0.225* |
| Peak KAM predictors | |||||||||
| 1 | FFC mean VBF | 0.497 | 0.247 (24.7) | 0.234 (23.4) | 0.247 (24.7) | 0.234 (23.4) | 1.017 | 0.222 | 0.457** |
| 2 | FFC peak KAA | 0.652 | 0.426 (42.6) | 0.406 (40.6) | 0.179 (17.9) | 0.172 (17.2) | – 0.026 | 0.006 | -0.425** |
FFC final foot contact, MLPF medio-lateral propulsive force, KFM knee flexion moment, VBF vertical braking force, HBF horizontal braking force, PFC penultimate foot contact, KAA knee abduction angle, IFPA initial foot progression angle, RPF resultant propulsive force
**p < 0.001; *p < 0.05