In the present study, we found that there were signifi-
cance differences between pre and post intervention mea-
sures in both groups. In pain assessed by VAS, FWS, muscle
strengths, and WOMAC scores. The differences were more
significant between pre and post intervention measures of
WOMAC in the first group (pain, stiffness, physical function, total) than in the second group, and there was also a more significant difference between pre and post intervention measures of muscle strength of quadriceps in the first group than in the second group, due to muscle balance between quadriceps and hamstring muscles.