Rigidity

Rigidity - (in neurology) resistance to performing passive movements of a limb. Most often, rigidity is one of the symptoms of parkinsonism. Smooth muscle resistance is called plastic or lead-pipe rigidity; intermittent resistance to performing passive movements is called cog rigidity.

For comparison: Spasticity is an increase in muscle tone caused by damage to the central nervous system. With spasticity, resistance to passive movements is also observed, but it is of a different nature compared to rigidity in parkinsonism.

Rigidity is one of the symptoms of Parkinson's disease, which manifests itself in the form of resistance to performing passive movements. Rigidity can be caused by various reasons, but most often it is associated with disruption of the brain and nervous system.

There are several types of rigidity:

– Plastic stiffness is smooth muscle resistance that causes tension and stiffness in certain parts of the body.

Rigidity and spasticity are two different neuromotor disorders that occur in various diseases of the nervous system. Rigidity is usually characterized by increased muscle tone and difficulty performing passive actions. Spasticity, on the contrary, is characterized by increased muscle activity, which leads to the development of pathological movements. In this article we will look at rigidity as a symptom of neurological diseases.

**Rigidity in neurology**

Rigidity may result from central nervous system (CNS) or peripheral nerve failure, depending on where the abnormality occurs. It reflects the process of muscle contraction due to the action of a strong stimulus. Cause