Ratcheting or Cog Wheel Type Rigidity in Parkinson's Disease
Rigidity associated with Parkinson's Disease contributes significantly to the person's inability to be mobile. Think of yourself being stiff all the time manifesting itself in a ratcheting or cog wheel type rigidity. Here the physician is feeling for any ratcheting or cog wheel type rigidity in the patient's left arm. Rigidity can present on just one side, especially in the early stages. More often than not, the Parkinson's rigidity will affect both sides of the body.