Isometric Quadriceps Exercises for Patients with Knee Osteoarthritis: A Randomized Controlled Trial Comparing Knee Joint Position Flexion versus Extension

Table 3

Comparison of the VAS and WOMAC scores after the treatment.

	Group I ()				Group II ()				Between groups’ value
	Baseline	4^th week		value	Baseline	4^th week		value
VAS rest				0.001				0.003	0.190
VAS activity				0.001				0.001	0.358
WOMAC pain (0-20)				0.001				0.001	0.516
WOMAC stiffness (0-8)				0.001				0.002	0.035
WOMAC function (0-68)				0.001				0.001	0.615
WOMAC global (0-96)				0.001				0.001	0.370

Data are reported as . VAS: visual analog scale, WOMAC: the Western Ontario and McMaster Universities Osteoarthritis Index. Group 1 (quadriceps isometric exercise was performed in knee extension), Group 2 (quadriceps isometric exercise was performed in knee flexion).