Multicenter study on the effectiveness of voice therapy

Multicenter study on the effectiveness of voice therapy - Eff_Sti

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00005938

Enrollment

170

Registered

2014-07-17

Start date

2013-07-01

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

R49

Interventions

Group 1: control: 30 persons without a voice disorder. Data from akustik und perzeptive analysis (Jitter, Shimmer, F0, GRBAS) gathered by recording voices by reading a text and talking about a free c

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Intervention gruop: functional voice disorders control group: no voice disorder

Exclusion criteria

Exclusion criteria: organic voice disorder, hearing loss, comorbid deseases, vegetative-degenarative deseases (e. g. Morbus Parcinson).

Design outcomes

Primary

Measure	Time frame
Outcome in voice parameters of the first, 10th. and 20th lession of voice therapy and up to 1,5 years after end of therapy (follow up: longterm effects). Self assessments: voice handycap index (VHI), the voice-profile for occupational voice users (SPBS), Vocal tract discomfort scale (VTD). There was a subgroup (n=42) with added acustical and perceptive analysis (Jitter, shimmer, GRBAS, F0) in different conditions (Reading a text, talking), Functional analysis: Maximum Phonation Time (MPT), s/z-ratio.	—

Measure

Time frame

Outcome in voice parameters of the first, 10th. and 20th lession of voice therapy and up to 1,5 years after end of therapy (follow up: longterm effects). Self assessments: voice handycap index (VHI), the voice-profile for occupational voice users (SPBS), Vocal tract discomfort scale (VTD). There was a subgroup (n=42) with added acustical and perceptive analysis (Jitter, shimmer, GRBAS, F0) in different conditions (Reading a text, talking), Functional analysis: Maximum Phonation Time (MPT), s/z-ratio.

—

Secondary

Measure	Time frame
The length of therapy until a regular voice quality is reached will be calculated by comparison of the outcome after 10 lessions of voice therapy to 20 lessions. Documentation of content of therapy.	—

Countries

Germany

Contacts

Public ContactUlla Beushausen

HAWK-Hochschule Hildesheim/Holzminden/Göttingen

beushausen@hawk-hhg.de05121881593

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026