explain the difference between a joint's possible range of motion and its actual range of motion.

Let's explore the difference between a joint's possible range of motion and its actual range of motion. The possible range of motion refers to how far a joint can move based on its anatomical structure and passive factors—like ligaments, joint shape, and connective tissues. This is often measured as passive range of motion , where an external force moves the joint without your muscles activating. On the other hand, the actual range of motion is how far you can move the joint actively using your own muscle strength and control, often called active range of motion. This is typically less than the passive range because your muscles and nervous system regulate movement to protect the joint and maintain stability. Before we dig deeper, could you share your current understanding or experience with concepts like active and passive range of motion? For instance, have you studied them in biology, sports training, or physical therapy contexts?