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  1. Spasticity: What It Is, Causes, Symptoms & Treatment

    Spasticity is a disruption in muscle movement patterns that causes certain muscles to contract all at once when you try to move or even at rest. The muscles remain contracted and resist being stretched.

  2. Spasticity - Johns Hopkins Medicine

    Spasticity affects over 12 million people worldwide, including approximately 80 percent of people with cerebral palsy and 80 percent of those with multiple sclerosis. Spasticity symptoms include …

  3. Spasticity - Wikipedia

    Spasticity (from Greek spasmos- 'drawing, pulling') is a feature of altered skeletal muscle performance with a combination of paralysis, increased tendon reflex activity, and hypertonia. It is also colloquially …

  4. Spasticity | Fact Sheets - Yale Medicine

    Spasticity is a condition characterized by muscle stiffness or tightness, increased muscle tone, muscle spasms, and exaggerated reflexes among other signs and symptoms. It occurs when the normal …

  5. What Is Spasticity? - WebMD

    May 8, 2025 · Spasticity can occur when there’s damage to your brain, spinal cord, or the nerves that send signals back and forth. Learn more about this condition and what triggers it.

  6. Spasticity: MedlinePlus Medical Encyclopedia

    Feb 11, 2025 · Spasticity is stiff or rigid muscles. It may also be called unusual tightness or increased muscle tone. Reflexes (for example, a knee-jerk reflex) are stronger or exaggerated. The condition …

  7. Spasticity | Neurological Surgery - Weill Cornell

    Spasticity is a movement disorder in which muscles are abnormally contracted, resulting in stiffness, rigidity, jerky motions, awkward posture and limb positions, and speech problems.

  8. Manage Spasticity After Spinal Cord Injury (SCI) | MSKTC

    What is spasticity? Spasticity is a condition in which muscles stiffen or contract. It is common in people with spinal cord injury (SCI). About 65% to 93% of people with an SCI have spasticity. It is more …

  9. Muscle spasticity: Symptoms, Causes, and Treatments - Healthline

    Sep 6, 2019 · Find out all about spasticity, which occurs when nerve impulses controlling muscle movement are interrupted or damaged.

  10. Spasticity of Muscles: Definition, Causes, Conditions & Treatment

    Aug 26, 2021 · Spasticity is a tightening of the muscles that prevents natural, fluid movement. Get a detailed overview of spasticity, including conditions that cause spasticity, related symptoms of …