Proprioception is the information from throughout our bodies that effectively locates us in space. It is what enables us to move, grasp, lift,
run, talk etc.|
Essentially it is the sensory messages that are sent to our brain from throughout our bodies from Muscle, Tendon, Ligament and Joint sensors.
These sensors (ie. Golgi Tendon Organs), inform our brain of the amount of tension in a particular muscle, how much stress a tendon or
ligament is under, and what position a particular joint is in.
This allows our brain to "locate" our body in space, or to put it more simply, it is our positioning system.