Classic signs of Parkinson's disease (PD) in an older adult include tremors at rest, rigidity (stiff muscles), akinesia (poverty of movement), and postural abnormalities. Which of the following is the most conspicuous sign of PD?

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Tremors at rest are the most conspicuous sign of PD and are often the initial symptom that leads to diagnosis. Rigidity, akinesia, and postural abnormalities are also common but may be less apparent or noticeable to others.

Classic Signs of Parkinson's Disease (PD) in an Older Adult