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cogwheel rigidity

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cogwheel rigidity
n.
Rigidity in which the muscles respond with cogwheel-like jerks to the use of force in bending the limb, as occurs in Parkinson's disease.
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A partial supranuclear gaze palsy, cogwheel rigidity, and bilateral Babinski signs were also evident.
Acute flaccid paralysis and West Nile virus infection. (Research) by Petersen, Lyle R. / Emerging Infectious Diseases
[15] Cogwheel rigidity is believed to be caused by an underlying tremor that is usually masked by rigidity, but uncovered when the muscle is stretched.
Motor unit behavior in Parkinson's disease by Enoka, Roger M. / Physical Therapy
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