Unloading and shortening reactions in Parkinson's disease.
The unloading reflex was tested on both sides of a patient with asymmetrical Parkinsonism. The motor activity after the silent period was significantly greater on the more affected side. The findings support the hypothesis that the response to unloading and the shortening reaction share a common mechanism which is exaggerated in Parkinsonism.
D000200:Action Potentials; D001480:Basal Ganglia Diseases / Q000503:physiopathology; D004576:Electromyography; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology; D009068:Movement; D009119:Muscle Contraction; D009468:Neuromuscular Diseases / Q000503:physiopathology; D010300:Parkinson Disease / Q000503:physiopathology*; D012018:Reflex / Q000502:physiology*