Different Levels of Blood Flow Restriction Versus Moderate Intensity Exercises in Patients With Knee Osteoarthritis

Brief Summary

This clinical trail will be conducted to investigate the effect of blood flow restriction (BFR) with different load levels between low blood occlusion percentage (50%) group and high blood occlusion percentage (70%) compared to moderate intensity training (60% of 1 RM) in patients with chronic knee osteoarthritis. The main questions it aims to answer are: 1. Will there be no difference between the effect of (70% vs 50%) of BFR versus traditional moderate resistive training exercises on pain intensity in knee osteoarthritis ? 2. Will there be no difference between the effect of (70% vs 50%) of BFR versus traditional moderate resistive training exercises on quadriceps muscle strength in knee osteoarthritis ? 3. Will there be no difference difference between the effect of (70% vs 50%) of BFR versus traditional moderate resistive training exercises on rate of perceived exertion in knee osteoarthritis ? 4. Will there be no difference between the effect of (70% vs 50%) of BFR versus traditional moderate resistive training exercises on functional ability in knee osteoarthritis ? 5. Will there be no difference between the effect of (70% vs 50%) of BFR versus traditional moderate resistive training exercises on physical function in knee osteoarthritis ? All participants will receive: 1. 16 sessions of supervised intervention 2 times per week for 8 weeks. 2. The assessment will be at 3 time points, baseline and at 4 weeks and at 8 weeks.