Table 3.
Multiple linear regression analysis for gait parameters improvements.
| Variables | B | SE | p |
|---|---|---|---|
| ΔSPEED (m/s) | |||
| Constant | 1.264 | 0.186 | <0.001 |
| UPDRS III | −0.018 | 0.004 | <0.001 |
| Gender (F/M) | −0.248 | 0.059 | <0.001 |
| Speed at baseline (m/s) | −0.446 | 0.109 | 0.001 |
| Adjusted R2 = 0.561, F = 8.672, p < 0.001 | |||
| ΔCADENCE (step/min) | |||
| Constant | 69.212 | 14.638 | <0.001 |
| UPDRS II | −0.523 | 0.259 | 0.056 |
| Gender (F/M) | −8.518 | 3.534 | 0.025 |
| Cadence at baseline (step/min) | −0.402 | 0.114 | 0.002 |
| Adjusted R2 = 0.347, F = 5.430, p = 0.006 | |||
| ΔSTEP LENGTH (MOST AFFECTED SIDE) (m) | |||
| Constant | 0.409 | 0.059 | <0.001 |
| UPDRS III | −0.006 | 0.001 | <0.001 |
| Gender (F/M) | −0.056 | 0.018 | 0.004 |
| Step length at baseline (most affected side) (m) | −0.413 | 0.084 | <0.001 |
| Adjusted R2 = 0.505, F = 10.529, p = 0.001 | |||
| ΔSTEP LENGTH (LESS OR NOT AFFECTED SIDE) (m) | |||
| Constant | 0.421 | 0.073 | <0.001 |
| UPDRS III | −0.005 | 0.0002 | 0.002 |
| Gender (F/M) | −0.077 | 0.021 | 0.002 |
| Step length at baseline (less or not affected side) (m) | −0.297 | 0.089 | 0.003 |
| Adjusted R2 = 0.444, F = 5.987, p = 0.002 | |||
| ΔTRUNK ROTATION ROM (°) | |||
| Constant | 39.059 | 5.880 | <0.001 |
| Hoehn-Yahr stage | −2.170 | 0.605 | 0.001 |
| Disease duration (years) | 0.392 | 0.156 | 0.019 |
| Age (years) | −0.387 | 0.073 | <0.001 |
| Trunk rotation RoM at baseline (°) | −0.955 | 0.258 | 0.001 |
| Adjusted R2 = 0.568, F = 10.523, p < 0.001 | |||
Δ is equal to the difference between the value of each parameter after and before the rehabilitative treatment.
The gait variables considered as independent variables are all before the rehabilitative treatment. The unstandardized coefficients (B), with their standard errors (SE) and statistical significances (p), are reported for each model, together with each model's goodness of fitting parameter (adjusted R2) and the ANOVA results (F and p).