Many middle-aged and older people are affected by knee joint pain. This article presents three simple and effective knee rehabilitation exercises and addresses some frequently asked questions from patients with knee osteoarthritis.
First, it is essential to understand the structure of knee cartilage. Knee cartilage is a flexible, sponge-like cushion that protects the bones by reducing direct friction during movement. Knee cartilage is primarily made up of water, with a smaller proportion consisting of cartilage cells that regulate its metabolism and repair. The synovial fluid within the joint contains key components such as collagen, proteoglycans, and hyaluronic acid, forming a mesh-like framework that maintains the cartilage’s integrity and function.
