Table 3. Loading vectors showing the variables with highest contribution (≥0.30) to each principal component and the percentage of total variation.
| Variables with contribution ≥0.30 | Loading Vectors | |||
|---|---|---|---|---|
| PC1 * | PC2 * | PC3 * | PC4 | |
| Rhythm | ||||
| Velocity (cm/s) | 0.33 | |||
| Cadence (steps/min) | 0.32 | |||
| Stance Time (s) | –0.33 | |||
| Step Time (s) | –0.33 | |||
| Variability | ||||
|---|---|---|---|---|
| Stance Time (%CV) | 0.38 | |||
| Double Support Time (%CV) | 0.35 | |||
| Velocity (%CV) | 0.31 | |||
| Step Time (%CV) | 0.30 |
| Support | ||||
|---|---|---|---|---|
| Base of Support (%CV) | 0.61 | |||
| Base of Support (cm) | –0.60 |
| Phase | ||||
|---|---|---|---|---|
| Double Support Time (%CV) | 0.52 | |||
| Swing Time (s) | 0.42 | |||
| Double Support Time (s) | –0.51 | |||
| Cumulative percentage of total variation (%) | 43.2 | 62.3 | 74.2 | 81.7 |
*
95% CI of the PC scores statistically significant between groups.