Osteoarthritis is a heterogeneous chronic progressive disease traditionally characterized by cartilage degeneration, joint space narrowing, and osteophyte formation. Common clinical symptoms include gradual onset knee pain worsened with activity, knee stiffness, and swelling. Weakness of the quadriceps and muscles of the feet, along with proprioceptive loss, leads to changes in balance and gait, limiting the ability to climb stairs, rise from a chair, and walk, ultimately resulting in dependency in daily living activities. Inactivity leads to decreased aerobic capacity, endurance, and mobility, ultimately resulting in a reduction in quality of life. Blood flow restriction training (BFRT) provides a method to facilitate aerobic capacity with minimum duration. The controlled compression and restricted blood flow may create an environment where individuals can engage in exercise with less pain, which may eventually result in improved walking endurance. However, there has been limited exploration of the BFRT in improving the endurance in patients with knee OA. Engaging in tolerable exercise programs is beneficial for these patients, as it helps reduce fatigue, anxiety, and recover their self-esteem, motivation, and well-being. With paucity of literature on blood flow restriction training on knee OA, there is a need to explore its efficacy. Thus, the current study aims to compare the effects of blood flow restriction training with conventional endurance training on pain, walking endurance, and function in patients with knee OA.

Primary Hypothesis: There will be equal effects of blood flow restriction training and conventional endurance training on pain, walking endurance, and function in patients with knee osteoarthritis

Alternate Hypothesis: Blood flow restriction training will have better effects on pain, walking endurance, and function in patients with knee osteoarthritis