Table 5 Gait characteristics before tripping, and reactive balance measures in response to tripping, for the three trip groups. Values are means (standard deviation)
|  | Baseline (n = 17) | Post-Control (n = 5) | Post-PBT (n = 8) | ANOVA p-value |
|---|---|---|---|---|
Gait characteristics before tripping | ||||
 Gait speed (m/s) | 1.50 (0.11) | 1.53 (0.11) | 1.47 (0.09) | .093 |
 Step length (%BH) | 43.6 (2.5) | 43.5 (2.7) | 43.5 (2.9) | .988 |
 Minimum toe clearance (mm) | 19.1 (10.8) | 15.0 (3.6) | 20.4 (8.2) | .421 |
 Required coefficient of friction | 0.21 (0.02) | 0.21 (0.02) | 0.20 (0.02) | .550 |
 Gait phase at trip onset (% swing) | 60.8 (2.4) | 62.3 (4.2) | 61.7 (1.7) | .550 |
Reactive balance in response to tripping | ||||
 Trunk angle at TD (deg) | 37.0 (9.6) | 36.9 (2.2) | 41.1 (3.7) | .059 |
 Recovery step length (%BH) | 54.3 (14.1) | 53.7 (8.8) | 64.1 (10.5) | .137 |
 Minimum hip height (% standing hip) | 88.9 (5.4) | 86.9 (7.1) | 90.5 (2.8) | .465 |
 Margin of stability at TD (cm) | −39.2 (15.3) | −56.4 (24.7) | −31.7 (9.1) | .112 |