On examination, she had parkinsonian features including masked face, slurred speech, rigidity of all extremities, bradykinesia, gait disturbance with short step, and stooped
[jkna.org]
Stiffness or rigidity of the limbs and trunk Bradykinesia (slowness of movement) Postural instability, or impaired balance and coordination Dopamine is a substance produced
[columbianeurology.org]
[…] that is usually associated with the following symptoms, all of which result from the loss of dopamine-producing brain cells: Tremor or trembling of the arms, jaw, legs, and face
[columbianeurology.org]