Table 2. Differences in Step Time Variability in the Virtual Reality gait task (STVVR) between Freezers and Non-freezers and between the ‘Off’ and ‘On’ states.
STVVR Median - Range | STVVR Median - Range | p-value | ||
Group effect | Freezers (n = 17) | Non-freezers (n = 11) | ||
‘Off’ | 24.5–69.8 | 15.6–19.7 | p = 0.032 | |
‘On’ | 13.5–48.4 | 11.8–15.7 | p = 0.125 | |
Medication | ‘Off’ | ‘On’ | ||
Freezers (n = 17) | 24.5–69.8 | 13.5–48.4 | p = 0.018 | |
Non-freezers (n = 11) | 15.6–19.7 | 11.8–15.7 | p = 0.017 |
NOTE: Medication = differences between STVVR in the ‘Off’ and ‘On’ medication states.