What is a common physical manifestation of hypokinetic dysarthria?

• A. Increased agility and movement
• B. Involuntary muscle relaxation during activity
• C. Reduced muscle tone and movement
• D. Excessive energy during speech

Answer: (C)

Hypokinetic dysarthria is characterized by a reduction in movement and muscle tone, which is often observed in individuals with conditions such as Parkinson's disease. This form of dysarthria results in a variety of speech and motor symptoms, including a decrease in the amplitude of movements, known as hypokinesis.

The common physical manifestation of this condition includes reduced muscle tone and movement, leading to a shuffling gait, reduced arm swing while walking, and a soft, monotonous voice during speech. This reduced movement can affect articulation, resulting in speech that may be slow or muffled. The decreased range and force of movement also contribute to the overall symptoms seen in hypokinetic dysarthria, such as difficulty initiating movement and a lack of facial expression, which is often described as "masked facies."

In contrast to the other choices, which imply increased movement, energy, or relaxation of muscles, the defining characteristic of hypokinetic dysarthria is indeed a marked reduction in both tone and movement, making option C the accurate choice.