The purpose of the study is to evaluate the gait spatio-temporal parameters of patients with degenerative changes in the knee joint and to relate them with 2 questionares (WOMAC and SF-36).

Inclusion Criteria:

• Symptomatic knee OA for at least 6 months
• Fulfilled American College of Rheumatology clinical criteria for OA of the knee
• Radiographically assessed OA of the knee graded 1-4 according to the Kellgren & Lawrence scale

Exclusion Criteria:

• Acute septic arthritis
• Patients with an increased tendency to fall
• Lack of physical or mental ability to perform or comply with the treatment procedure
• Diabetes mellitus
• History of pathological osteoporotic fracture

patients with knee osteoarthritis evaluated by an orthopedic surgeon. patient will be recruted from the outpatient clinic at "asaf Harofe" medical center, Zrifin, Israel and APOS medical center, Herzlya, Israel