Table 3.
Confusion matrices for predicting load levels per walk trial using gender-specific statistical prediction models. Under- vs. over-estimated misclassifications are colored in red and green, respectively.
| Men (prediction accuracy = 68.3%) | ||||||
|---|---|---|---|---|---|---|
| Predicted Load Level | Total | Sensiti vity |
||||
| No-load | 13.6 kg | 22.7 kg | ||||
| Actual Load | No-load | 40 | 0 | 0 | 40 | 100% |
| 13.6 kg | 7 | 23 | 10 | 40 | 57.5% | |
| 22.7 kg | 3 | 18 | 19 | 40 | 47.5% | |
| Total | 50 | 41 | 29 | 120 | ||
| Precision | 80% | 56.1% | 65.5% | |||
| Women (prediction accuracy = 85.0%) | ||||||
| Predicted Load Level | Total | Sensiti vity |
||||
| No-load | 13.6 kg | 22.7 kg | ||||
| Actual Load | No-load | 40 | 0 | 0 | 40 | 100% |
| 13.6 kg | 5 | 29 | 6 | 40 | 72.5% | |
| 22.7 kg | 0 | 7 | 33 | 40 | 82.5% | |
| Total | 45 | 36 | 39 | 120 | ||
| Precision | 88.9% | 80.6% | 84.6% | |||