Table 3. Principal component model for hemiplegic patients.
| Kinematicmeasure | Variation Explained (%) | PC | Interpretation | Mean PC scores (SD) | ||
| T1 | T2 | T3 | ||||
| Hip flexion angle | 66 | PC1 | − | 0.04 (0.96) | −0.03 (1.03) | −0.01 (1.03) |
| 17 | PC2 | Range of motion of hip flexionthroughout gait cycle | 0.09 (0.96) | −0.16 (0.93)† | −0.13 (1.05)* | |
| 11 | PC3 | − | 0.01 (1.01) | 0.03 (0.96) | −0.04 (1.06) | |
| Knee flexion angle | 52 | PC1 | − | −0.02 (1.02) | −0.05 (1.02) | 0.07 (0.99) |
| 19 | PC2 | Amplitude of knee flexion during swing | −0.11 (1.00) | 0.16 (0.96)† | 0.10 (1.01)* | |
| 14 | PC3 | − | −0.08 (0.97) | 0.02 (1.01) | 0.06 (1.05) | |
| 5 | PC4 | − | −0.02 (0.95) | 0.06 (1.04) | −0.03 (1.03) | |
| Ankle flexion angle | 63 | PC1 | Magnitude of ankle flexionthroughout gait cycle | −0.11 (0.99) | 0.13 (0.98)† | 0.06 (1.00)* |
| 17 | PC2 | Amount of dorsiflexion in mid stanceand plantarflexion during swing | −0.14 (1.03) | 0.09 (0.98)† | 0.02 (1.01)* | |
| 8 | PC3 | − | −0.11 (0.95) | 0.07 (1.04) | 0.03 (1.01) | |
| 5 | PC4 | − | −0.06 (0.95) | 0.08 (0.98) | −0.01 (1.07) | |
Principal components (PC) and mean PC score (SD) for condition T1 (1–3 gait trials), condition T2 (4–6 gait trials) and condition T3 (7–9 gait trials).
†
Significant difference between T1 and T2 (p<0.05).
*
Significant difference between T1 and T3 (p<0.05).