Data was collected at baseline prior to the
intervention, and after completion of the 4,th 8th and 12th
week of the intervention by the researcher with the
exception of the quadriceps muscle strength that was
measured by a technician. Experimental participants
were asked to response the same questionnaire
except the demographic one, and perform physical
performance tests after completion of the 8,th 16,th
and 24 th exercise session. Participants in the
control group received information regarding
osteoarthritis of the knee and no further intervention.
They were then asked to make appointment to
complete questionnaires and perform physical
performance test at the 4,th 8,th and 12th week of thestudy. Except the quadriceps muscle strength test,
endpoint assessment was performed by the re-
searcher for both the experimental and control group.