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The LSVT® Programs have been developed and scientifically researched over the past 25 years with funding from the National Institutes of Health.

LSVT® LOUD is the first speech treatment with level 1 evidence and established efficacy for treating voice and speech disorders in people with Parkinson disease (PD) with application to other neurological disorders.

Research on LSVT® LOUD has documented improvements on functioning in people with PD following treatment, including:

  • Increased vocal loudness

  • Improved articulation and speech intelligibility

  • Improved intonation

  • Improvements in facial expression

  • Changes in neural functioning related to voice and speech

LSVT® LOUD is a standardized treatment protocol that is customized to the unique communication goals of each person across a range of disease severity and communication impairments.

LSVT® LOUD treatment consists of:

1) 16 sessions: 4 consecutive days a week for 4 weeks

2) 1 hour sessions, one-on-one with a certified therapist. 

3) Daily homework practice

4) Daily carryover exercises

*LSVT LOUD treatment can only be delivered by speech-language pathologists who are certified using this method. 

Video obtained from:

LSVT Global, Inc. Phone: 1-888-438-5788 Email:


Pre and Post LSVT Treatment

Pre and Post LSVT Treatment

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