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

    Jul 9, 2022 · 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 …

  2. What Is Spasticity? - WebMD

    May 8, 2025 · Spasticity is a condition that causes your muscles to stiffen, tighten, and contract. It happens involuntarily, which means you don’t have control over it.

  3. 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 …

  4. 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 …

  5. What Is Spasticity | Spasticity Treatment

    Spasticity is a condition in which muscles stiffen or tighten, preventing normal fluid movement. The muscles remain contracted and resist being stretched, thus affecting movement, speech and gait.

  6. Spasticity – Symptoms and Causes | Penn Medicine

    Spasticity is a stiffness of the muscles. Also called hypertonia, the condition causes unusual tightness or increased toning of the muscles. Spasticity can make reflexes stronger and more exaggerated, which …

  7. Spasticity - PubMed

    Aug 8, 2023 · Spasticity is a motor disorder marked by a velocity-dependent increase in muscle tone or tonic stretch reflexes associated with hypertonia. Colloquially, it is often referred to as “tightness” or …

  8. 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 …

  9. 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 …

  10. Snapshot: What is Spasticity? - National Ataxia Foundation

    Spasticity is a condition where muscles involuntarily stiffen, impeding normal smooth movements. Spasticity can present in varying severities with varying impacts on daily life.