Muscle Rigidity

Continuous involuntary sustained muscle contraction which is often a manifestation of BASAL GANGLIA DISEASES. When an affected muscle is passively stretched, the degree of resistance remains constant regardless of the rate at which the muscle is stretched. This feature helps to distinguish rigidity from MUSCLE SPASTICITY. (From Adams et al., Principles of Neurology, 6th ed, p73)

Also Known As:

Catatonic Rigidity; Extensor Rigidity; Cogwheel Rigidities; Gegenhaltens; Muscular Rigidity; Rigidities, Cogwheel; Rigidity, Catatonic; Rigidity, Cogwheel; Rigidity, Extensor; Rigidity, Extrapyramidal; Rigidity, Muscle; Rigidity, Nuchal; Cogwheel Rigidity; Extrapyramidal Rigidity; Gegenhalten; Nuchal Rigidity; Rigidity, Muscular

Musculoskeletal Diseases: 719
- Muscular Diseases: 10128
  - Muscle Rigidity: 718
Nervous System Diseases: 14178
- Neurologic Manifestations: 7102
  - Neuromuscular Manifestations: 23
    - Muscle Hypertonia: 183
      - Muscle Rigidity: 718
Signs and Symptoms Pathological Conditions
- Signs and Symptoms
  - Neurologic Manifestations: 7102
    - Neuromuscular Manifestations: 23
      - Muscle Hypertonia: 183
        Muscle Rigidity: 718

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