There is a whole range of motion that one never notices is missing until the ability to twist and turn like that returns. Things as simple as grabbing a sock from the floor or walking down stairs quickly. Things like picking up your child or rolling over on your side in bed. Getting in a car without careful preparation or sitting in an Adirondack chair. Things you never think about until you can’t do them, then don’t realize how much you missed them until you begin doing them again.