The proprioceptive system is related to the vestibular system, which most people are familiar with as the part of the inner ear that help's you physically stabilize/balance in your environment.
Originally Posted by judoka_uk
That's why inner ear infections can lead to extreme dizziness, loss of balance/orientation, or syncope. Swelling is putting pressure on that sensitive part of the CNS./end derail
People with sensory processing disorder (also sometimes called proprioceptive dysfunction, which my oldest son suffers from) require occupational therapy in order to learn certain skills such as proper spatial awareness, gross and fine motor coordination, etc.
Interestingly after years of therapy, he now craves balance (the physical sensation) and I find him balancing on chairs, the couch, his desk constantly. This is because he still has SPD, he still craves sensory input more than most people.
So...yeah fucking with the proprioceptive sensors in the body during Judo would cause very noticeable results, like the inability to stand, walk, or even hear/see things properly, since the visual and auditory nerves are also involved in proprioception. It's all biofeedback.