Spasticity

Definition

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 can interfere with walking, movement, speech, and many other activities of daily living.

Alternative Names

Muscle stiffness; Hypertonia

Considerations

Spasticity is often caused by damage to the part of the brain that is involved in movements under your control. It may also occur from damage to the nerves in the spinal cord.

Symptoms of spasticity include:

Spasticity may also affect speech. Severe, long-term spasticity may lead to contracture of muscles. This can reduce range of motion or leave the joints bent.

Causes

Spasticity may be caused by any of the following:

This list does not include all conditions that can cause spasticity.

Home Care

Exercise, including muscle stretching, can help make symptoms less severe. Physical therapy is also helpful.

When to Contact a Medical Professional

Contact your health care provider if:

What to Expect at Your Office Visit

Your doctor will perform a physical exam and ask about your symptoms, including:

After determining the cause of your spasticity, the provider may refer you to a physical therapist. Physical therapy involves different exercises, including muscle stretching and strengthening exercises. Physical therapy exercises can be taught to parents who can then help their child do them at home.

Other treatments may include:

References

Deluca GC, Griggs RC. Approach to the patient with neurologic disease. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 368.

McGee S. Examination of the motor system: approach to weakness. In: McGee S, ed. Evidence-Based Physical Diagnosis. 5th ed. Philadelphia, PA: Elsevier; 2022:chap 61.

Oleszek JC, Davidson LT. Spasticity. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 730.



Review Date: 1/23/2023
Reviewed By: Joseph V. Campellone, MD, Department of Neurology, Cooper Medical School of Rowan University, Camden, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, timeliness, or correctness of any translations made by a third-party service of the information provided herein into any other language. © 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
© 1997- adam.comAll rights reserved.
A.D.A.M. content is best viewed in IE9 or above, Firefox and Google Chrome browser.