Rigidity Extrapyramidal

Extrapyramidal rigidity (rigidita extrapyramidalis) is a disorder of movement and muscle control that is characterized by a decrease in muscle flexibility and elasticity. Most cases of stiffness occur in people over 65 years of age, but it can also occur at younger ages. Possible combination with other mental and/or physical disorders: loss of sensitivity, impaired coordination of movements, confusion and memory impairment.

The causes of extrapyramidal rigidity often remain unclear. However, there are some known factors that may contribute to its occurrence.

**Rigidnoepileptiform extrapyramidal rigidity,** or **rigid-epileptoid extrapyramidal rigidity** is a variant of catatonic rigidity, characterized by constant rigidity, monotonous movements, emotional flattening, emasculated speech and dysphoric affect while maintaining consciousness. [1]

These pathological features in typical cases relate to the motor functions of the body, are observed and can be recognized in combination with pathological phenomena such as akinesia, psychomotor agitation and negativism. Impairments in motor functions are not limited to rigidity and are often combined with choreoathetosis. They may manifest themselves as excessive resistance to one or more limbs, peculiar pseudoatrophic movements, characteristic gait features in stereotypy, vibrator pathology and disturbance