Regular gentle exercise can help reduce knee pain and improve flexibility in people with arthritis. Low-impact activities such as straight leg raises, seated knee extensions, and hamstring stretches strengthen the muscles supporting the knee joint. Wall sits and mini squats can improve stability when performed carefully. Range-of-motion exercises like heel slides help maintain joint flexibility and reduce stiffness. It is important to start slowly, avoid sudden movements, and stop if pain worsens. Consistency is key—short daily sessions are more effective than intense workouts. Always consult a doctor or physiotherapist before beginning any exercise routine for knee pain.