Clinical trial NCT07007845: The Effect of Osteopathy and Complete Vocal Technique on Phonation in Amateur Singers
Official title: The Effect of Osteopathy and Complete Vocal Technique on Phonation in Amateur Singers: A Crossover Study.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Singing
Breathing Exercise
Osteopathy
Keywords: Diaphragm function
Singing technique
Support
Osteopathy
Lead sponsor: Complete Vocal Institute
Sponsor class: INDUSTRY
Collaborators: name: Buckinghamshire New University
First posted: 2025-06-06
Enrollment: 15
Sex: ALL
Minimum age (years): 18
Maximum age (years): 50
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: TREATMENT

Brief summary: This study is about breathing function during singing, specifically aimed at improving the functionof the muscles in the respiratory system involved in control over the voice.The goal of the study is to examine if osteopathic techniques and/or work with support developedby Complete Vocal Institute influences voice quality and sense of ease using voice.The study compares two types of interventions:1: An osteopathic optimization treatment for diaphragm, a major muscle responsible for breathing.And2: A singing technique for learning stamina.Both techniques work on improving patterns of breathing which should make singing feel easier and lower future risks of injury and strain. The study takes place at Complete Vocal Institute where participant voices will be recorded by a microphone and by a laryngograph. In using the laryngograph, two gold-plated electrodes will be placed over the larynx. A microphone records the voice whereas EGG-electrodes record how the vocal folds are vibrating. Measurements are made before each type of treatment and after each treatment. Both are non-invasive and carry no risk to the voice. The recordings will be done in a sound-treated room for privacy.The singing intervention will involve breathing exercises, and the osteopathic treatment will involve a single fascia treatment. It is possible that the osteopathic treatment can leave participant diaphragms and the area around the lower ribs sore, this is normal and is expected to last no more than 24-48 hours. Each session is expected to last approximately one hour, and only a single visit will be required.To ensure comfort, please wear loose-fitting clothing that allows for easy breathing and singing. For one part of the intervention, participants will be asked to remove clothing like one would for any physical massage, so the therapist can access and treat the diaphragm.There are no costs involved nor compensation for participation in the study. Participation is completely voluntary. Should participants at any time wish to withdraw from the study, they are free to do so by informing Julie Bie at julie@netfyssen.dk hereof.All data will be anonymized and any information that could identify participants as a subject will be kept strictly confidential. No personal information will be included in the study report or other publication arising from the project analysis.If there have any questions, please contact the investigators at julie@netfyssen.dk or mathias@shout.dk. This research is being overseen by an Institutional Review Board ("IRB"). The two therapists involved in this study are insured, and the study has received favorable approval from the Ethics Committee of Buckinghamshire New University.


Eligibility criteria: Inclusion Criteria:

* General health, no known vocal pathology or ongoing respiratory infection
* No ongoing reflux symptoms
* Amateur singer

Exclusion Criteria:

* No prior osteopathic treatment related to voice
* No prior CVT Support Training

Primary outcomes:
measure: Maximum Phonation Time
timeFrame: Baseline
measure: Mean sound pressure level
timeFrame: Baseline
measure: Maximum and minimum fundamental frequency
timeFrame: Baseline
measure: Fx SD
timeFrame: Baseline
measure: Qx
timeFrame: Baseline
measure: Jitter
timeFrame: Baseline
measure: Normalised Noise Energy
timeFrame: Baseline
measure: Cepstral Peak Prominence
timeFrame: Baseline
measure: Maximum Phonation Time
timeFrame: Day 1
measure: Mean sound pressure level
timeFrame: Day 1
measure: Maximum and minimum fundamental frequency
timeFrame: Day 1
measure: Fx SD
timeFrame: Day 1
measure: Qx
timeFrame: Day 1
measure: Jitter
timeFrame: Day 1
measure: Normalised Noise Energy
timeFrame: Day 1
measure: Cepstral Peak Prominence
timeFrame: Day 1
measure: Maximum Phonation Time - post intervention
timeFrame: Day 1
measure: Mean sound pressure level - post intervention
timeFrame: Day 1
measure: Maximum and minimum fundamental frequency - post intervention
timeFrame: Day 1
measure: Fx SD - post intervention
timeFrame: Day 1
measure: Qx - post intervention
timeFrame: Day 1
measure: Jitter - post intervention
timeFrame: Day 1
measure: Normalised Noise Energy - post intervention
timeFrame: Day 1
measure: Cepstral Peak Prominence - post intervention
timeFrame: Day 1
Secondary outcomes:
Other outcomes:
Locations:
city: Copenhagen
country: Denmark
facility: Complete Vocal Institute
Study officials:
References: