all subjests were referred to the study from the outpatient depentment by orthopedic surgeons Sujects had a degenerative osteoarthritic knee of grad 3 or less based on radiographic diagnosis in the kellgren and lawrence grading of osteoarthritis 20 had nolimitation of rang of motion except for minimum tightness in the knee joint did not engage in any hight joint loading exercise such as hiking or tennis playing and had not undergone any specific treatment 3 months before entering the study participants were excluded from the study after on-site evaluation if they presented other musculoskeletal problem associated with the knee joint such as fracturetendon or ligament tears or meniscus injury musculoskeletal problems associated with the hip or ankle /foot joint or central or peripheral neuropathy