SYMP:0000394

MeSH:D009128

UMLS:C0277820

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)

Involuntary contraction of the muscle fibers innervated by a motor unit. Fasciculations may be visualized as a muscle twitch or dimpling under the skin, but usually do not generate sufficient force to move a limb. They may represent a benign condition or occur as a manifestation of MOTOR NEURON DISEASE or PERIPHERAL NERVOUS SYSTEM DISEASES. (Adams et al., Principles of Neurology, 6th ed, p1294)

Clasp-Knife Spasticity

肌肉抽搐

muscle twitching

Spasticity, Clasp-Knife

Clasp Knife Spasticity

Muscle Spasticity

Spasticity, Muscle

Clasp-knife spasticity

Spastic

symptoms

ISPO:00001971

Spasticity, muscle

ISPO:00001971

Spasticity, muscle