IRCT20210815052194N1 IRCT 2021-08-29 Pro Health Rehab and Medical Center Effect of stretching in patient with knee osteoarthritis Comparative Effects of Mulligan Traction Straight Leg Raise Versus Muscle Energy Technique on Pain Intensity and Hamstring Tightness in patient With Knee Osteoarthritis 2021-08-30 anticipated 36 Complete https://irct.ir/trial/58213 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Health service research, Randomization description: The randomization of the participants will be done by using the simple random sampling also called lottery method. Firstly each member of the population is assigned a number. In the next step these numbers are written on separate cards which are physically similar in shape, size, color etc. Then they are placed in a basket and thoroughly mixed. In the last step the slips are taken out randomly without looking at them. The number of slips drawn will be equal to the sample size, Blinding description: Both group Participants will not be aware of the study groups and this will be carried out by keeping the participants anonymous for the study period. 3 knee osteoarthritis. Intervention 1: Intervention group: Group A (Mulligan traction straight leg raise) treatment will be given to participant's for 4 week, baseline treatment will be moist hot pack and Tens for 10 minutes and than mulligan traction straight leg raise will be applied. Intervention 2: Intervention group: Group B (Muscle energy technique) treatment will be given to participant's for 4 week, baseline treatment will be moist hot pack and Tens for 10 minutes and than muscle energy technique will be applied, 2 sets of 10 repetitions per session. By using 20% of their total strength with hold of 5 second participants will perform isometric contraction and rest for 3-5 seconds between each isometric contraction. No - There is not a plan to make this available Justification or reason for not sharing IPD is As we have signed and assured the patient that there data will not be share any where else other than current study