Table 3.
Descriptive statistic of spatial, temporal, and general parameters of dataset grouped by knee and pace (SD: Standard Deviation, CV: Coefficient of Variation, IQR: Interquartile Range).
| Variable | Knee Status | Pace | Mean | SD | CV | Range | IQR |
|---|---|---|---|---|---|---|---|
| Step Length (cm) | Fast | 66.6 | 10.4 | 15.6 | 50.0 | 9.0 | |
| OA | Normal | 56.7 | 9.1 | 16.1 | 54.6 | 9.2 | |
| Slow | 53.2 | 6.9 | 13.0 | 45.0 | 9.8 | ||
| Fast | 66.0 | 9.9 | 15.1 | 46.7 | 10.8 | ||
| TKA | Normal | 59.1 | 7.6 | 12.9 | 52.3 | 10.7 | |
| Slow | 53.7 | 6.5 | 12.1 | 37.1 | 8.4 | ||
| Stride Length (cm) | Fast | 132.9 | 20.3 | 15.3 | 91.5 | 16.3 | |
| OA | Normal | 113.0 | 17.4 | 15.4 | 88.4 | 17.0 | |
| Slow | 106.1 | 12.9 | 12.1 | 67.7 | 18.2 | ||
| Fast | 132.1 | 18.9 | 14.3 | 93.4 | 17.4 | ||
| TKA | Normal | 118.1 | 14.3 | 12.1 | 71.4 | 19.8 | |
| Slow | 107.2 | 12.3 | 11.5 | 67.2 | 14.5 | ||
| Step Width (cm) | Fast | 13.2 | 5.7 | 42.8 | 25.5 | 9.1 | |
| OA | Normal | 12.9 | 6.5 | 50.3 | 50.3 | 9.0 | |
| Slow | 12.4 | 5.1 | 41.3 | 24.5 | 7.5 | ||
| Fast | 10.0 | 4.3 | 42.7 | 23.2 | 5.5 | ||
| TKA | Normal | 10.0 | 4.9 | 49.3 | 27.2 | 6.5 | |
| Slow | 10.2 | 4.0 | 38.6 | 22.6 | 5.2 | ||
| Toe out Angle (deg) | Fast | 23.9 | 15.7 | 65.8 | 71.8 | 21.3 | |
| OA | Normal | 24.6 | 17.8 | 72.3 | 86.8 | 27.7 | |
| Slow | 27.4 | 16.7 | 60.9 | 72.4 | 26.1 | ||
| Fast | 18.9 | 14.6 | 77.4 | 62.0 | 23.5 | ||
| TKA | Normal | 20.8 | 15.9 | 76.5 | 105.0 | 23.4 | |
| Slow | 18.4 | 13.3 | 72.1 | 76.5 | 22.0 | ||
| Step Time (s) | Fast | 0.5 | 0.1 | 14.7 | 0.3 | 0.1 | |
| OA | Normal | 0.6 | 0.1 | 11.1 | 0.5 | 0.1 | |
| Slow | 0.7 | 0.1 | 13.6 | 0.6 | 0.1 | ||
| Fast | 0.5 | 0.1 | 11.2 | 0.4 | 0.1 | ||
| TKA | Normal | 0.6 | 0.1 | 9.9 | 0.4 | 0.1 | |
| Slow | 0.7 | 0.1 | 12.4 | 0.6 | 0.1 | ||
| Stride Time (s) | Fast | 0.9 | 0.1 | 13.7 | 0.6 | 0.2 | |
| OA | Normal | 1.1 | 0.1 | 10.0 | 0.7 | 0.2 | |
| Slow | 1.4 | 0.2 | 12.7 | 1.0 | 0.2 | ||
| Fast | 1.0 | 0.1 | 10.2 | 0.6 | 0.1 | ||
| TKA | Normal | 1.1 | 0.1 | 8.9 | 0.6 | 0.1 | |
| Slow | 1.4 | 0.2 | 11.7 | 1.0 | 0.2 | ||
| Stance Time (s) | Fast | 0.5 | 0.1 | 19.9 | 0.4 | 0.1 | |
| OA | Normal | 0.6 | 0.1 | 14.7 | 0.7 | 0.1 | |
| Slow | 0.8 | 0.1 | 16.7 | 0.8 | 0.2 | ||
| Fast | 0.5 | 0.1 | 12.7 | 0.4 | 0.1 | ||
| TKA | Normal | 0.6 | 0.1 | 11.2 | 0.5 | 0.1 | |
| Slow | 0.8 | 0.1 | 13.8 | 0.7 | 0.1 | ||
| Swing Time (s) | Fast | 0.4 | 0.1 | 11.7 | 0.3 | 0.1 | |
| OA | Normal | 0.5 | 0.1 | 11.4 | 0.4 | 0.1 | |
| Slow | 0.6 | 0.1 | 13.5 | 0.5 | 0.1 | ||
| Fast | 0.4 | 0.0 | 9.8 | 0.3 | 0.1 | ||
| TKA | Normal | 0.5 | 0.0 | 8.5 | 0.4 | 0.1 | |
| Slow | 0.6 | 0.1 | 11.9 | 0.5 | 0.1 | ||
| Single Support Time (s) | Fast | 0.4 | 0.1 | 13.6 | 0.3 | 0.1 | |
| OA | Normal | 0.5 | 0.1 | 12.2 | 0.4 | 0.1 | |
| Slow | 0.6 | 0.1 | 14.1 | 0.5 | 0.1 | ||
| Fast | 0.4 | 0.0 | 9.7 | 0.2 | 0.1 | ||
| TKA | Normal | 0.5 | 0.0 | 8.1 | 0.2 | 0.1 | |
| Slow | 0.6 | 0.1 | 11.8 | 0.5 | 0.1 | ||
| Double Support Time (s) | Fast | 0.0 | 0.1 | 270.0 | 0.5 | 0.1 | |
| OA | Normal | 0.1 | 0.1 | 60.3 | 0.5 | 0.1 | |
| Slow | 0.2 | 0.1 | 52.0 | 0.6 | 0.1 | ||
| Fast | 0.1 | 0.0 | 70.3 | 0.3 | 0.1 | ||
| TKA | Normal | 0.1 | 0.0 | 33.5 | 0.3 | 0.1 | |
| Slow | 0.3 | 0.1 | 30.0 | 0.6 | 0.1 | ||
| Cadence (1/s) | Fast | 2.2 | 0.3 | 15.3 | 1.6 | 0.5 | |
| OA | Normal | 1.8 | 0.2 | 11.0 | 1.8 | 0.3 | |
| Slow | 1.5 | 0.2 | 14.3 | 1.3 | 0.2 | ||
| Fast | 2.1 | 0.3 | 12.6 | 1.9 | 0.2 | ||
| TKA | Normal | 1.8 | 0.2 | 9.4 | 1.0 | 0.2 | |
| Slow | 1.4 | 0.2 | 12.8 | 1.2 | 0.2 | ||
| Speed (cm/s) | Fast | 146.7 | 23.0 | 15.7 | 93.6 | 30.8 | |
| OA | Normal | 99.8 | 20.2 | 20.2 | 114.8 | 21.5 | |
| Slow | 80.3 | 18.2 | 22.6 | 87.1 | 23.4 | ||
| Fast | 139.7 | 26.1 | 18.7 | 122.0 | 38.5 | ||
| TKA | Normal | 105.8 | 16.1 | 15.3 | 81.6 | 25.1 | |
| Slow | 77.5 | 14.2 | 18.3 | 74.7 | 17.3 |