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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 …

  2. Spasticity - Johns Hopkins Medicine

    Spasticity is abnormal muscle tightness due to prolonged muscle contraction.

  3. 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 …

  4. 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.

  5. 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. …

  6. Muscle spasticity: Symptoms, Causes, and Treatments

    Sep 6, 2019 · Spasticity occurs when the nerve impulses that control muscle movement are interrupted or damaged. A variety of conditions can cause this, including: However, spasticity …

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  7. SPASTICITY Definition & Meaning - Merriam-Webster

    The meaning of SPASTICITY is a spastic state or condition; especially : muscular hypertonicity with increased tendon reflexes.

  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. …

  9. Spasticity - Kaiser Permanente

    Spasticity usually occurs because of damage to the part of the brain or spinal cord that controls voluntary movement. It's often the result of a spinal cord injury, a stroke, or a disease such as …

  10. 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.