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

Table 1

Demographic characteristics of patients.

	Group I ()	Group II ()	value
Age (years)			0.511
Gender
Male ()	2 (%)	5 (%)	0.390
Female ()	12 (%)	10 (%)
BMI (kg/m^2)			0.295
Duration of complaints (years)			0.390
Occupation
Housewife	9	7	0.630
Retired	3	5
Employee	2	3
Education
Illiterate	2	2	0.645
Literate	5	4
Primary school	3	5
Elementary school	3	1
High school	1	2
University	0	1

Data are presented as or (%). BMI: body mass index. Group 1 (quadriceps isometric exercise was performed in knee extension), group 2 (quadriceps isometric exercise was performed in knee flexion).