Effectiveness of Lee Silverman Voice Treatment LOUD in Japanese-speaking patients with Parkinson's disease

Effectiveness of Lee Silverman Voice Treatment LOUD in Japanese-speaking patients with Parkinson's disease - Effectiveness of Lee Silverman Voice Treatment LOUD in Japanese-speaking patients with Parkinson's disease

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000036223

Enrollment

Registered

2019-03-18

Start date

2016-06-17

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson&#39

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: LSVT LOUD training was conducted at our hospital from April 1, 2011 to March 31, 2020

Exclusion criteria

Exclusion criteria: Person who is diagnosed with dementia

Design outcomes

Primary

Measure	Time frame
The assessments described below were conducted at the following times: 1) pretreatment (Baseline), 2) immediately after four weeks of treatment, and 3) at the end of 12 months of follow-up (12FU) after four weeks of treatment. 1) Vocal loudness A) Sustained phonation of /a/,B) Reading a passage: "The North Wind and the Sun" C) Delivering a monologue: This task used the Japanese folk tale "Momotaro".	—

Measure

Time frame

The assessments described below were conducted at the following times: 1) pretreatment (Baseline), 2) immediately after four weeks of treatment, and 3) at the end of 12 months of follow-up (12FU) after four weeks of treatment. 1) Vocal loudness A) Sustained phonation of /a/,B) Reading a passage: "The North Wind and the Sun" C) Delivering a monologue: This task used the Japanese folk tale "Momotaro".

—

Secondary

Measure	Time frame
2) Intelligibility Intelligibility was assessed based on the reading of a passage and the production of a monologue recorded in vocal loudness testing. The audio samples were arranged randomly and assessed at a constant SPL by three speech-language pathologists with at least five years of experience. The audio data were copied and reassessed to examine the reproducibility of the original assessments. Intelligibility was assessed using a standard Japanese test, as described by Itoh et al. Audio samples were assessed on a nine-level scale in 0.5-point increment, including "1. Completely intelligible," "2. Some unintelligible words," "3. Intelligible if the listener knows the topic," "4. Few intelligible words," and "5. Completely unintelligible." Intraclass correlation coefficients (ICCs) were calculated to determine the assessor with the highest reliability; this assessor's assessments of intelligibility were used as reference values.	—

Measure

Time frame

2) Intelligibility Intelligibility was assessed based on the reading of a passage and the production of a monologue recorded in vocal loudness testing. The audio samples were arranged randomly and assessed at a constant SPL by three speech-language pathologists with at least five years of experience. The audio data were copied and reassessed to examine the reproducibility of the original assessments. Intelligibility was assessed using a standard Japanese test, as described by Itoh et al. Audio samples were assessed on a nine-level scale in 0.5-point increment, including "1. Completely intelligible," "2. Some unintelligible words," "3. Intelligible if the listener knows the topic," "4. Few intelligible words," and "5. Completely unintelligible." Intraclass correlation coefficients (ICCs) were calculated to determine the assessor with the highest reliability; this assessor's assessments of intelligibility were used as reference values.

—

Countries

Japan

Contacts

Public ContactKEIGO NAKAYAMA

National Center Hospital, National Center of Neurology and Psychiatry Department of Rehabilitation Medicine

stnakayama@ncnp.go.jp+80-42-341-2711

Outcome results