Table 1.
Characteristics of the study subjects at the baseline exam.
| Characteristic | |
|---|---|
| Women (n = 395) | |
| Age, mean (SD) years | 55.7 (3.2) |
| Body mass index, mean (SD) kg/m2 | 32.4 (4.3) |
| Physical activitya, mean (SD) | 6837 (3714) |
| Knees (n = 790) | |
| Varus malalignment, n (%) | 56 (7.1) |
| Valgus malalignment, n (%) | 299 (37.8) |
| History of knee injury, n (%) | 100 (12.6) |
| Kellgren-Lawrence grade ≥1, n (%) | 393 (49.7) |
| Quadriceps muscle strength, mean (SD) Newton | 253 (47) |
| Mild knee symptoms, n (%) | 246 (31.1) |
| Meniscus tear, medial, n (%) | 71 (9) |
| Meniscus tear, lateral, n (%) | 39 (5) |
a
Measured with the Short Questionnaire to Assess Health-enhancing physical activity (SQUASH) questionnaire.