| Δ Usual Gait Speed (m/s) | |||||
---|---|---|---|---|---|---|
Independent Variable | r | R2 | R2 Change | Unstandardized B (Standard Error) | Standardized β | P - value |
Model 1 | 0.345 | 0.119 | 0.119 | Â | Â | Â |
   Group | 0.082 |  |  | 0.014 (0.018) | 0.066 | 0.441 |
   Age | -0.19 * |  |  | -0.014 (0.005) | -0.239 | 0.007 |
   MMSE Score | 0.02 |  |  | 0.004 (0.011) | 0.028 | 0.749 |
   Baseline Gait Speed | -0.19 * |  |  | -0.249 (0.081) | -0.273 | 0.003 |
   Δ Quadriceps Strength | 0.11 |  |  | 0.003 (0.002) | 0.129 | 0.133 |
Model 2 | 0.441 | 0.194 | 0.075 | Â | Â | Â |
   Group | 0.082 |  |  | 0.008 (0.018) | 0.036 | 0.659 |
   Age | -0.19 * |  |  | -0.013 (0.005) | -0.217 | 0.011 |
   MMSE Score | 0.02 |  |  | 0.002 (0.011) | 0.015 | 0.859 |
   Baseline Gait Speed | -0.19 * |  |  | -0.283 (0.078) | -0.310 | < 0.001 |
   Δ Quadriceps Strength | 0.11 |  |  | 0.004 (0.002) | 0.173 | 0.038 |
   Δ Stroop Test | 0.26 * |  |  | 0.003 (0.001) | 0.283 | 0.001 |
Model 3 | 0.490 | 0.240 | 0.045 | Â | Â | Â |
   Group | 0.082 |  |  | 0.017 (0.018) | 0.077 | 0.349 |
   Age | -0.19 * |  |  | -0.014 (0.005) | -0.236 | 0.005 |
   MMSE Score | 0.02 |  |  | 0.001 (0.011) | 0.008 | 0.922 |
   Baseline Gait Speed | -0.19 * |  |  | -0.248 (0.077) | -0.271 | 0.002 |
   Δ Quad Strength | 0.11 |  |  | 0.002 (0.002) | 0.086 | 0.324 |
   Δ Stroop Test | 0.26 ** |  |  | 0.002 (0.001) | 0.229 | 0.007 |
   Δ ABC Scale | 0.29 *** |  |  | 0.004 (0.002) | 0.236 | 0.008 |