What are common characteristics of respiration in spastic dysarthria?

• A. Improved vital capacity and clear voice quality
• B. Reduced vital capacity and discoordination
• C. Increased lung volume and normal breathing patterns
• D. Unchanged respiratory control and consistent phrase lengths

Answer: (B)

In spastic dysarthria, the characteristics of respiration are often linked to the underlying neurological issues that contribute to the speech disturbance. Reduced vital capacity is a notable feature because individuals with spastic dysarthria tend to have compromised lung function associated with increased muscle tone, resulting from upper motor neuron lesions. This tightness or spasticity in the musculature can lead to less effective breathing patterns, making it difficult to take in adequate air for speech production.

Additionally, discoordination refers to the timing and control of the muscles involved in breathing. In spastic dysarthria, the coordination of inhalation and exhalation might be disrupted, leading to difficulties in managing breath support for speech. This lack of coordination can manifest in a speech pattern characterized by a weak or strained voice quality, as well as challenges in sustaining longer utterances.

The other options present features that do not align with the typical respiratory profile observed in spastic dysarthria. Improved vital capacity and clear voice quality suggest an enhanced breathing function and effective phonation, which is not consistent with the nature of spastic dysarthria. Similarly, increased lung volume and normal breathing patterns do not accurately portray the respiratory control issues seen in these patients, nor do unchanged respiratory control and consistent phrase