cogwheel rigidity(redirected from Cogwheel Resistance)
inflexibility or stiffness.
clasp-knife rigidity increased tension in the extensor of a joint when it is passively flexed, giving way suddenly on exertion of further pressure; seen especially in upper motor neuron disease. Called also clasp-knife reflex.
cogwheel rigidity tension in a muscle that gives way in little jerks when the muscle is passively stretched; seen in parkinson's disease.
decerebrate rigidity see decerebrate rigidity.
decorticate rigidity see decorticate rigidity.
paratonic rigidity an intermittent abnormal increase in resistance to passive movement in a comatose patient.
a type of rigidity seen in parkinsonism in which the muscles respond with cogwheellike jerks to the use of constant force in bending the limb.
cog·wheel ri·gid·i·ty(kog'wēl ri-jid'i-tē)
A type of rigidity seen in parkinsonism in which the muscles respond with cogwheellike jerks to the use of constant force in bending the limb.