Table 4.
The variance accounted for statistical models of impairment and participation variables for the activty limitation used as cluster variables
| Variables | Impairment and participation variables included in the model | R | Adjusted R2 | F (p -value) |
|---|---|---|---|---|
| Maintaining a standing position | ||||
| All subject (N = 250) | Extensor, EPROM, Acquisition of good and service, Pain scale, FPROM, Flexor, Community life | .365 | .108 | 5.317 (<.001) |
| Cluster 1 (N = 79) | Extensor, Pain scale, Acquisition of good and service, FPROM, EPROM, Flexor, Community life | .602 | .139 | 1.624 (.186) |
| Timed walking | ||||
| All subject (N= 250) | Extensor, EPROM, Acquisition of good and service, Pain scale, FPROM, Flexor, Community life | .540 | .272 | 14.258 (<.001) |
| Cluster 1 (N = 79) | Extensor, Pain scale, Acquisition of good and service, FPROM, EPROM, Flexor, Community life | .713 | .337 | 2.957 (.027) |
| Cluster 2 (N = 67) | Extensor, EPROM, Acquisition of good and service, Pain scale, FPROM, Community life, Flexor | .619 | .319 | 6.021 (<.001) |
| Cluster 3 (N = 76) | Extensor, Acquisition of good and service, Pain scale, Flexor, FPROM, EPROM, Community life | .470 | .144 | 2.874 (.011) |
| Cluster 4 (N = 28) | Extensor, FPROM, Pain scale, EPROM, Community life, Flexor, Acquisition of good and service | .550 | .220 | 3.665 (.002) |
| Timed stair test | ||||
| All subject (N = 250) | Extensor, EROM, Acquisition of good and service, Pain scale, FPROM, Flexor, Community life | .563 | .297 | 16.057 (<.001) |
| Cluster 1 (N = 79) | Extensor, Pain scale, Acquisition of good and service, FPROM, EPROM, Flexor, Community life | .744 | .397 | 3.540 (.012) |
| Cluster 2 (N = 67) | Extensor, EPROM, Acquisition of good and service, Pain scale, FPROM, Community life, Flexor | .597 | .290 | 5.366 (<.001) |
| Cluster 3 (N = 76) | Extensor, Acquisition of good and service, Pain scale, Flexor, FPROM, EPROM, Community life | .433 | .108 | 2.345 (.033) |
| Cluster 4 (N = 28) | Extensor, FPROM, Pain scale, EPROM, Community life, Flexor, Acquisition of good and service | .495 | .155 | 2.730 (.016) |
Note: The model for cluster 2, 3 and 4 of the “Maintaining a standing position” could not be computed since the dependent variables are constant
Abbreviation:FPROM Flexion passive range of motion, EPROM Extension passive range of motion, Extensor Knee extensor muscle power, Flexor Knee flexor muscle power