TABLE II.
Kinematic, Muscle Activity, and Spatio-temporal Parameters from the Clinical Evaluation of the Exoskeleton
| Baseline AFO | Free | Powered | ||||
|---|---|---|---|---|---|---|
| R | L | R | L | R | L | |
| Number of Gait Cycles | 3 | 4 | 4 | 5 | 4 | 4 |
| Max Knee Flexion Angle Stance (°) | 56.0 (6.5) | 49.7 (2.8) | 54.1 (3.4) | 48.1 (2.6) | 37.4 (3.6) | 37.8 (1.8) |
| Peak Knee Extension Angle Stance (°) | 41.3 (5.3) | 31.4 (3.4) | 42.6 (1.7) | 29.8 (3.2) | 23.2 (4.7) | 19.9 (3.0) |
| Knee Range of Motion (°) | 32.3 (10.1) | 34.4 (6.5) | 32.5 (5.8) | 36.5 (7.6) | 47.6 (4.4) | 55.4 (8.9) |
| Max Hip Extension Angle (°) | 2.0 (5.4) | 3.6 (3.7) | 6.3 (3.1) | 6.1 (3.7) | −3.4 (3.3) | −2.3 (2.4) |
| Max Ankle Dorsi-Flexion Angle (°) | 22.1 (0.6) | 14.2 (0.3) | 32.4 (1.1) | 30.3 (1.5) | 41.4 (2.7) | 26.0 (2.4) |
| Step Length (cm) | 32.9 (1.8) | 35.0 (6.1) | 25.5 (4.5) | 25.8 (6.5) | 22.3 (5.3) | 27.3 (3.4) |
| Step Width (cm) | 18.4 (4.3) | 21.3 (7.9) | 16.8 (2.1) | 16.3 (4.1) | 20.6 (2.6) | 19.6 (3.0) |
| Cadence (Steps/min) | 152 (3) | 135 (6) | 108 (17) | 106 (7) | 113(14) | 98 (34) |
Values are mean (SD). Bold indicates a significant difference from the baseline condition (p<0.05).