A 68-year-old woman with knee osteoarthritis reports chronic pain limiting walking. She is overweight and uses paracetamol intermittently. What is the most important non-pharmacological management strategy to recommend?AStrict bed rest to protect the jointBSupervised exercise and weight loss programmeCLong-term high-dose NSAIDs without gastroprotectionDIntra-articular steroid injections every monthEImmediate total knee replacement in all casesCheck my answer