A 2025 study by Kim and colleagues investigated the effectiveness of LSVT LOUD® – a voice therapy program originally designed for people with Parkinson’s disease – for adults with cerebral palsy (CP). The research tested both in-person and telehealth versions of the extended LSVT-X protocol (16 session over 8 weeks, read original study by Spielman et al., 2007). Outcome measures focused on voice and speech, swallowing, and quality of life. The study included 16 adults with CP, ranging from mild to profound speech impairments.
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