What is the role of neuromuscular electrical stimulation (NMES) in treating dysarthria?

• A. Enhancing articulate speech
• B. Increasing vocal volume
• C. Improving muscle strength and coordination
• D. Reducing hypernasality

Answer: (C)

The role of neuromuscular electrical stimulation (NMES) in treating dysarthria primarily focuses on improving muscle strength and coordination. NMES involves the application of electrical impulses to stimulate muscles, which can help to enhance muscular function. In individuals with dysarthria, weakness or lack of coordination in the muscles responsible for speech production often contributes to speech difficulties. By using NMES, therapists aim to activate these muscles, promoting muscle strength and better coordination, which can lead to more effective speech production.

Enhancing articulate speech, increasing vocal volume, and reducing hypernasality are aspects that can potentially be improved through NMES, but these changes are a result of the underlying improvements in muscle strength and coordination. Therefore, while the other roles connect to the benefits of NMES treatment indirectly, the primary role is clearly reflected in the strength and coordination of the muscles involved in speech.