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what is rigidity in parkinsons disease

Rigidity is present in about 90-99% of PD cases.
Rigidity is independent of the velocity used to manipulate the limb which distinguishes it from spasticity.
Muscular rigidity can be seen unilateral or bilateral.

Rigidity is present in about 90-99% of PD cases.
Rigidity is independent of the velocity used to manipulate the limb which distinguishes it from spasticity.
Muscular rigidity can be seen unilateral or bilateral.

Rigidity can be defined as increased resistance when stretching a muscle passively and is commonly associated with bradykinesias. Rigidity is one of the symptoms that has important implications in the quality of life of all patients; therefore, its assessment and treatment is important in every single case