Muscle Spasticity

A form of muscle hypertonia associated with upper MOTOR NEURON DISEASE. Resistance to passive stretch of a spastic muscle results in minimal initial resistance (a free interval) followed by an incremental increase in muscle tone. Tone increases in proportion to the velocity of stretch. Spasticity is usually accompanied by HYPERREFLEXIA and variable degrees of MUSCLE WEAKNESS. (From Adams et al., Principles of Neurology, 6th ed, p54)

Year introduced: 1977

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Tree Number(s): C05.651.512, C10.597.613.550.550, C23.888.592.608.550.550

MeSH Unique ID: D009128

Entry Terms:

• Spasticity, Muscle
• Clasp-Knife Spasticity
• Clasp Knife Spasticity
• Spasticity, Clasp-Knife
• Spastic

Previous Indexing:

• Spasm (1966-1976)

See Also:

• Spasm

All MeSH Categories
Diseases Category
Musculoskeletal Diseases
Muscular Diseases
Muscle Spasticity

All MeSH Categories
Diseases Category
Nervous System Diseases
Neurologic Manifestations
Neuromuscular Manifestations
Muscle Hypertonia
Muscle Spasticity

All MeSH Categories
Diseases Category
Pathological Conditions, Signs and Symptoms
Signs and Symptoms
Neurologic Manifestations
Neuromuscular Manifestations
Muscle Hypertonia
Muscle Spasticity