Table 3.
Individual gait characteristics.
| OA | PD | ||||||
|---|---|---|---|---|---|---|---|
| Non-carrier | ε4 | Non-carrier | ε4 | GBA | |||
| Gait | Pace/Turning | Gait Speed (m/s) | 1.1 (0.2) | 1.1 (0.2) | 1.1 (0.2) | 1.0 (0.2) | 1.0 (0.2) |
| Stride Length (m) | 1.2 (0.1) | 1.2 (0.2) | 1.2 (0.2) | 1.1 (0.2) | 1.1 (0.2) | ||
| Foot Strike Angle (°) | 23.1 (4.0) | 23.3 (4.6) | 19.7 (6.3) | 18.4 (6.1) | 19.2 (6.4) | ||
| Turns Duration (s) | 2.2 (0.3) | 2.1 (0.3) | 2.4 (0.4) | 2.4 (0.4) | 2.5 (0.4) | ||
| Peak Turn Velocity (°/s) | 180.9 (33.7) | 186.3 (43.4) | 160.6 (42.3) | 166.4 (30.5) | 151.2 (29.8) | ||
| Steps In Turn (count) | 3.8 (0.6) | 3.6 (0.4) | 4.1 (0.8) | 4.1 (0.8) | 4.1 (0.8) | ||
| Rhythm | Stride Time (s) | 1.1 (0.1) | 1.1 (0.1) | 1.1 (0.1) | 1.1 (0.1) | 1.1 (0.1) | |
| Stance Time (% gait cycle) | 60.4 (1.8) | 60.3 (1. 6) | 60.6 (1.7) | 60.3 (1.9) | 60.6 (2.1) | ||
| Swing Time (% gait cycle) | 39.6 (1.8) | 39.7 (1.6) | 39.4 (1.7) | 39.7 (1.9) | 39.4 (2.1) | ||
| Variability | Foot Strike Angle Variability | 2.08 (0.62) | 2.21 (0.73) | 2.43 (1.19) | 2.35 (0.73) | 2.62 (0.79) | |
| Stride Time Variability | 0.02 (0.01) | 0.03 (0.01) | 0.03 (0.01) | 0.03 (0.01) | 0.03 (0.01) | ||
| Stance Time Variability | 0.77 (0.18) | 0.78 (0.20) | 0.95 (0.39) | 0.90 (0.30) | 1.02 (0.34) | ||
| Swing Time Variability | 0.77 (0.18) | 0.78 (0.20) | 0.95 (0.39) | 0.90 (0.30) | 1.02 (0.34) | ||
| Stride Length Variability | 0.04 (0.02) | 0.04 (0.02) | 0.05 (0.02) | 0.05 (0.02) | 0.06 (0.03) | ||
| Trunk Movement | Trunk Coronal RoM (°) | 5.2 (2.1) | 4.6 (1.3) | 5.1 (2.0) | 4.4 (1.6) | 5.0 (3.4) | |
| Trunk Sagittal RoM (°) | 4.1 (0.9) | 4.3 (0.8) | 4.6 (1.5) | 4.0 (1.0) | 4.3 (1.1) | ||
| Trunk Transverse RoM (°) | 8.6 (2.8) | 10.3 (3.3) | 10.3 (3.7) | 10.1 (4.1) | 8.8 (2.7) | ||
| Postural Sway | Area/Jerkiness | Sway Area (m2/s5) | 0.003 (0.002) | 0.003 (0.002) | 0.009 (0.012) | 0.006 (0.006) | 0.014 (0.025) |
| Jerk AP (m2/s5) | 0.002 (0.002) | 0.002 (0.002) | 0.004 (0.005) | 0.003 (0.003) | 0.007 (0.010) | ||
| Jerk ML (m2/s5) | 0.001 (0.0004) | 0.0004 (0.0002) | 0.003 (0.013) | 0.001 (0.002) | 0.008 (0.025) | ||
| RMS AP (m2/s) | 0.071 (0.025) | 0.070 (0.026) | 0.106 (0.066) | 0.091 (0.049) | 0.110 (0.042) | ||
| RMS ML (m2/s) | 0.021 (0.009) | 0.022 (0.011) | 0.043 (0.041) | 0.042 (0.032) | 0.052 (0.045) | ||
| Velocity | Velocity AP (m/s) | 0.253 (0.200) | 0.235 (0.154) | 0.403 (0.395) | 0.356 (0.384) | 0.398 (0.258) | |
| Velocity ML (m/s) | 0.077 (0.052) | 0.092 (0.080) | 0.165 (0.221) | 0.177 (0.153) | 0.217 (0.257) | ||
Mean (standard deviation). All variability measures are presented as standard deviations.