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Effects of External Vibration on Voice Quality in Muscle Tension Dysphonia Patients and Classically Trained Singers

NCT02083341 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 29

Last updated 2018-09-05

No results posted yet for this study

Summary

Muscle tension dysphonia (MTD) is a disabling voice disorder which causes severe voice change, neck pain, and voice fatigue. Current therapy modalities to treat these disorders include multiple visits to a qualified speech language pathologist (SLP) for rehabilitation with voice exercises and focused laryngeal/neck massage. Access to these services is difficult with long waitlists and often not covered by current public health insurance or locally available to many patients in Ontario. The goal of this study is to demonstrate a reduction in symptoms and improvement in vocal function by applying an external vibration device to key sites (e.g. jaw, neck, skull base) commonly identified as a source of abnormal muscle tension and injury in certain voice disorders, specifically MTD.

This study will also investigate the effect of external vibration on the voice quality in classically trained singers (CTSs). Certain desirable acoustic qualities in a singers' voice are only accessible when the larynx and its extrinsic muscles are in a relaxed state. Muscle misuse and vocal strain are common problems in performers, which can result in conditions that require surgery and speech therapy, and may lead to a loss of income. Similar to vocal warm up exercises which contribute to the prevention of vocal injury, external vibration is expected to improve muscle perfusion in an acute setting and may have a direct effect on vocal fold cover viscosity.

Both study groups will be randomized to receive either the external vibration device or a sham device. The sham device looks identical to the experimental device but has the vibration component removed.

Conditions

  • Dysphonia
  • Singing

Interventions

DEVICE

Lelo® Siri vibrator

external vibration device

DEVICE

Lelo® Siri vibrator with vibration component removed

external vibration device - sham

Sponsors & Collaborators

  • Unity Health Toronto

    lead OTHER

Principal Investigators

  • Jennifer Anderson, MD, FRCS(C) · Chief, Department of Otolaryngology - Head and Neck Surgery

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2014-08-31
Primary Completion
2016-01-15
Completion
2016-01-15

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02083341 on ClinicalTrials.gov