The objective of this study is to determine the comparison of Graston technique versus muscle energy technique to improve hamstring flexibility and ADL among patient of knee O.A.

Inclusion Criteria:

• Knee osteoarthritis patient with bilateral (but tested only severe side) or unilateral limb involvement.(13)
• Knee osteoarthritis patient already diagnosed by orthopedic surgeon with x ray findings showing grade I or II in kellgren and Lawrence criteria for knee OA will be selected. (16)
• Ambulate independently with or without assistive devices and ascend and descend at least a flight of stairs.(13)
• Both male and female will be included in study.
• Age above 40 to 55years.(13)

Exclusion Criteria:

• Patient with history of any known neurological, cardio or respiratory conditions.
• Patient present with history of open wound, Skin infection or tumors in the area of treatment.
• Any other orthopedic condition or fracture in the area of treatment limb.
• Patient will be excluded if they have low back pain, sciatica or deformities related to his spine and knee.
• Patient with history of recent lower limb or spinal surgeries.