Table 1.
Results
| Metric | Step length (m) | Avg. speed (m/s) | Mediolateral sway (cm) |
|---|---|---|---|
| Mean HC (SD) | 0.776 (0.091) | 1.357 (0.218) | 1.544 (0.690) |
| Mean OFF (SD) | 0.613 (0.102) | 1.024 (0.192) | 1.692 (0.526) |
| Mean ON (SD) | 0.664 (0.118) | 1.005 (0.186) | 1.787 (0.610) |
| Difference OFF-HC (rel. diff.) | -0.16 (5.84%) | − 0.333 (6.98%) | 0.148 (2.29%) |
| Difference ON-HC (rel. diff.) | − 0.111 (3.87%) | − 0.351 (7.44%) | 0.243 (3.65%) |
| Difference OFF-ON (rel. diff.) | − 0.051 (2.00%) | 0.019 (0.46%) | − 0.095 (1.36%) |
| p-value of t-test OFF-HC (Cohen’s d) | 0.001 (− 1.643) | < 0.001(− 1.665) | 0.552 (0.256) |
| p-value of t-test ON-HC (Cohen’s d) | 0.047 (− 1.004) | 0.001 (-1.797) | 0.418 (0.383) |
| p-value of t-test OFF-ON (Cohen’s d) | 0.218 (− 0.461) | 0.792 (0.010) | 0.654 (− 0.166) |
| Corr. coef. OFF with UPDRS (p-value) | 0.08 (0.77) | 0.01 (0.97) | 0.599 (0.01) |
| Corr. coef. ON with UPDRS (p-value) | − 0.530 (0.09) | − 0.260 (0.44) | 0.361 (0.28) |