Final answer:
LSVT is used to treat speech disorders in those with Parkinson's disease, improving vocal loudness and quality for better communication.
Step-by-step explanation:
The Lee Silverman Voice Treatment (LSVT) is specifically designed to treat speech disorders in individuals with Parkinson's disease.
The treatment aims to improve vocal loudness by stimulating the muscles of the voice box (larynx) and speech mechanism, which can often become weak and less coordinated in Parkinson's patients.
Evidence suggests that LSVT can lead to significant improvements in vocal loudness, intonation, and voice quality, helping patients communicate more effectively.