Table 1.
Item Loadings From Factor Analysis Using Varimax Rotation
| Impairments | Memory | Non-Memory Cognition | |
|---|---|---|---|
| Leg strength, N/kg | .64 | −.01 | −.01 |
| Leg velocity, m/s | .51 | .08 | .04 |
| Trunk extensor muscle endurance, s | .49 | .13 | .05 |
| Knee flexion range of motion, degrees | .25 | −.04 | .13 |
| HVLT Total Recall z-score | .05 | .83 | .27 |
| HVLT Delayed Recall z-score | .05 | .92 | .17 |
| HVLT Recall Discrimination z-score | .02 | .65 | .12 |
| Digit Symbol Substitution Test z-score | −.01 | .16 | .80 |
| Trail Making Test A z-score | .11 | .16 | .70 |
| Trail Making Test B z-score | .22 | .28 | .75 |
| Physical Activity Scale for the Elderly | .36 | .10 | .06 |
| Brief Pain Inventory | −.41 | −.02 | −.13 |
| Activities-specific Balance Confidence Scale | .65 | .12 | .11 |
| Depressive symptoms, PHQ-9 score | −.22 | .04 | −.17 |
| Education level | .20 | .25 | .30 |
| Vision | −.19 | −.09 | −.15 |
| Comorbidity count | −.30 | .06 | −.01 |
Note: HVLT = Hopkins Verbal Learning Test; PHQ-9 = Patient Health Questionnaire. Item loadings >|0.40| (in bold) were considered relevant components of the factor.