Table 4.
Sensitivity to change of the DynaPort MT in improved (n = 22), stable (n = 12) and worsened patients (n = 6).
| Parameter | T1 (Mean ± SD) |
T2 (Mean ± SD) |
p-Value 1 | SRM |
|---|---|---|---|---|
| Gait speed [m/s] | ||||
| Improved | 0.54 ± 0.17 | 0.66 ± 0.18 | <0.001 | 0.99 |
| Stable | 0.54 ± 0.19 | 0.57 ± 0.22 | 0.389 | 0.26 |
| Worsened | 0.65 ± 0.21 | 0.58 ± 0.20 | 0.260 | −0.52 |
| Cadence [steps/min] | ||||
| Improved | 91.1 ± 12.3 | 96.6 ± 8.1 | 0.011 | 0.60 |
| Stable | 84.7 ± 18.0 | 84.4 ± 16.2 | 0.923 | −0.03 |
| Worsened | 90.0 ± 21.9 | 84.0 ± 20.9 | 0.093 | −0.85 |
| Step length [cm] | ||||
| Improved | 35.0 ± 9.9 | 41.5 ± 11.4 | <0.001 | 0.97 |
| Stable | 37.4 ± 9.2 | 39.5 ± 9.8 | 0.192 | 0.40 |
| Worsened | 43.2 ± 4.8 | 41.0 ± 6.8 | 0.387 | −0.39 |
| Step time [s] | ||||
| Improved | 0.68 ± 0.11 | 0.64 ± 0.05 | 0.061 | −0.42 |
| Stable | 0.74 ± 0.16 | 0.75 ± 0.17 | 0.852 | 0.06 |
| Worsened | 0.71 ± 0.20 | 0.75 ± 0.19 | 0.124 | 0.76 |
| Step time asymmetry [%] | ||||
| Improved | 8.4 ± 9.8 | 7.3 ± 7.3 | 0.224 | −0.09 |
| Stable | 6.9 ± 6.7 | 6.6 ± 5.2 | >0.999 | −0.04 |
| Worsened | 11.7 ± 14.5 | 12.0 ± 12.6 | 0.893 | 0.02 |
| Step time variability [s] | ||||
| Improved | 0.09 ± 0.08 | 0.06 ± 0.05 | 0.884 | −0.25 |
| Stable | 0.07 ± 0.05 | 0.09 ± 0.10 | 0.822 | 0.30 |
| Worsened | 0.07 ± 0.05 | 0.08 ± 0.03 | 0.854 | 0.21 |
| Walk ratio [cm/min/steps] | ||||
| Improved | 0.39 ± 0.12 | 0.43 ± 0.13 | 0.008 | 0.62 |
| Stable | 0.45 ± 0.11 | 0.48 ± 0.11 | 0.219 | 0.38 |
| Worsened | 0.50 ± 0.14 | 0.51 ± 0.14 | 0.748 | 0.14 |
1p-values are given for paired t-tests (gait speed, cadence, step length, step time, and walk ratio) or Wilcoxon signed rank tests (step time asymmetry and variability). T1, hospital admission; T2; hospital discharge; SRM, standard response mean; SD, standard deviation.