Timing of Frontal Plane Trunk Lean, Not Magnitude, Mediates Frontal Plane Knee Joint Loading in Patients with Moderate Medial Knee Osteoarthritis

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.

	CTRL	OA
Age (years)	49.7 (7.4); 40–65	50.4 (6.2); 40–59
BMI (kg/m^2)	27.1 (7.4); 22.7–32.8	28.3 (3.1); 23.0–34.6
INV strength (kg/BMI)	1.05 (0.29); 0.42–1.64	1.04 (0.28); 0.72–1.69
UN strength (kg/BMI)	1.07 (0.27); 0.63–1.60	1.05 (0.25); 0.77–1.81
INV ROM (degrees)	140.2 (5.3); 133–150	127.3 (10.2); 107–139
UN ROM (degrees)	139.5 (4.1); 134–147	133.8 (9.6); 106–148
KOOS-pain	98.9 (2.2); 94–100	64.1 (16.6); 33–94
KOOS-symptoms	95.3 (6.2); 82–100	68.3 (15.7); 46–96
KOOS-ADL	99.4 (1.1); 97–100	71.8 (17.4); 43–97
KOOS-sports/rec	98.9 (2.1); 95–100	31.5 (22.1); 0–80
KOOS-QOL	96.9 (6.3); 81–100	38.4 (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 ().