An increased rigidity and spasticity of the muscles.
An abnormal increase in muscle tone. Hypertonia is a symptom of certain genetic disorders and may result in arm or leg deformities. When hypertonia is caused by damage to the central nervous system, it is usually called spasticity.
Hypertonia refers to heightened muscle rigidity. This condition can stem from damage to the nerves that supply the muscle or alterations within the muscle itself. Hypertonia triggers episodes of persistent muscle spasms. When limb muscles remain hypertonic following a stroke or head injury, it results in a condition known as spasticity.
Enhanced muscle tension or activity.