Singing, Voice Quality
Conditions
Keywords
voice training, acoustic, respiratory therapy
Brief summary
The goal of this clinical trial in voice professionals with both genders aimed to verify the changes in the vocal range profile and the changes in the glottic and vocal tract configuration for more efficient phonation after applying the adapted Lee Silverman Method and the addiction of lung volume recruitment technique in acoustic and structural analysis.
Detailed description
A cross-over randomized trial with two arms-the Lee Silverman Method and the addiction of lung volume recruitment technique (LVRT)-will be conducted with voice professionals to assess the effects of both interventions on the acoustic, perceptive, and visual aspects of voice and their impact on respiratory muscle strength.
Interventions
PROCEDUREAdapted Lee Silverman Method
Exercise protocol with 6 steps that the voice professionals adapted from Lee Silverman Method
DEVICELung volume recruitment technique - LVRT
The adapted Lee Silverman Method will have a addiction of LVRT technique. Lung inflation begins, reaching an optimal inspiratory peak of 30 cmH2O. From this point, the sound /HA/ begins to be emitted until the most comfortable low sound, where the emission should be maintained for as long as possible, making sure that this time is not less than 12 seconds, trying to emit a high and comfortable vocal intensity. When performing the emissions, the mouth should be kept wide open with the tongue, jaw and neck relaxed, repeating 5 emissions in 3 series. Between series, the participant will be instructed to drink 50 ml of water exactly as in the previous emissions.
Sponsors
Escola Superior de Ciencias da Saude
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Masking description
The outcomes assessors will be blinded for intervention applied before the asessment
Intervention model description
all participants will perform adapted Lee Silverman Method (Adapt Lee) and Lung volume recruitment technique plus Adapt Lee during 2 weeks, with washout period of 6 weeks.
Eligibility
Sex/Gender
ALL
Age
20 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* Voice professionals with no voice disease
Exclusion criteria
* smokers * Glottis paralysis and dysfunction * dental problems * Mental and cognitive disorders
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Vocal Range Profile | 30 days | Minimum fundamental frequency - f0; Maximum f0; Extension f0; Extension in Semitone; Minimum intensity; Maximum intensity and Area |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| functional laryngeal assessment | 30 days | The Colton and Casper protocol will assess phonatory function using an endoscopic evaluation with a flexible fiberoptic endoscope. |
| Respiratory muscle strength | 30 days | Dynamic inspiratory muscle strength (S-index) will be obtained using the KH5 device of the POWERbreathe®. |
Countries
Brazil
Contacts
CONTACTJanaina P Janaina Pimenta, Msc
Outcome results
None listed