Table 1: Group mean (SD) and range of values for age, BMI, passive range of knee joint motion (ROM), abductor muscle strength, and scores for each subscale of KOOS.

CTRLOA

Age (years)49.7 (7.4); 40–6550.4 (6.2); 40–59
BMI (kg/m2)27.1 (7.4); 22.7–32.828.3 (3.1); 23.0–34.6
INV strength (kg/BMI)1.05 (0.29); 0.42–1.641.04 (0.28); 0.72–1.69
UN strength (kg/BMI)1.07 (0.27); 0.63–1.601.05 (0.25); 0.77–1.81
INV ROM (degrees)140.2 (5.3); 133–150127.3 (10.2); 107–139
UN ROM (degrees)139.5 (4.1); 134–147133.8 (9.6); 106–148
KOOS-pain98.9 (2.2); 94–10064.1 (16.6); 33–94
KOOS-symptoms95.3 (6.2); 82–10068.3 (15.7); 46–96
KOOS-ADL99.4 (1.1); 97–10071.8 (17.4); 43–97
KOOS-sports/rec98.9 (2.1); 95–10031.5 (22.1); 0–80
KOOS-QOL96.9 (6.3); 81–10038.4 (16.3); 6–63

BMI: body mass index; INV: involved side; UN: uninvolved side; ROM: passive range of motion; ADL: activities of daily living. difference between groups (). difference between knees ().