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Immediate and medium-term effect of photobiomodulation on vocal fatigue in professionals of the voice

Immediate and medium-term effect of photobiomodulation on vocal fatigue in professionals of the voice

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-73yp7vc
Enrollment
Unknown
Registered
2022-03-28
Start date
2022-04-01
Completion date
Unknown
Last updated
2025-10-27

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

Conditions

Fadigue

Interventions

In this study there will be two groups with 20 individuals each, test group (TG) and Control group (CG), so the participants can be allocated in one or the other group. The control group is of the Sha
the control group will be exposed to the same photobiomodulation protocol, however the equipment will be turned off and will also be submitted to the same procedures of the Otorhinolaryngological and
the second after the immediate application of Photobiomodulation in the placebo modality and the third, after a set of 4 sessions of placebo photobiomodulation, with 1 application per week. The otorhi
36294

Sponsors

Universidade Federal de São Paulo
Lead Sponsor
Universidade Federal de São Paulo
Collaborator

Eligibility

Inclusion criteria

Inclusion criteria: Professional voice men and women; with vocal fatigue complaint; with a clinical diagnosis of behavioral dysphonia; age group from 18 to 45 years

Exclusion criteria

Exclusion criteria: Volunteers under the age of 18 and over 46; that present in the vocal folds; phonotraumatic injuries; organic; neurological changes; previous laryngeal surgeries; vocal fold hemorrhages at the time of evaluation; upper airway infections in the last 2 weeks, active tumor processes; who were previously submitted to speech therapy in the voice area; active smokers; pregnant women; menopausal women

Design outcomes

Primary

MeasureTime frame
Reduction in the Vocal Fatigue Index (IFV) mainly demonstrated by the reduction of factors related to vocal restriction and physical discomfort associated with the voice, totaling a reduction of at least 40% in the Vocal Fatigue Index (IFV).

Secondary

MeasureTime frame
20% improvement in vocal quality, proven by auditory perceptual assessment through the CAPE-V Perceptual Assessment - Auditory Voice Assessment Consensus and 40% reduction in voice deviation assessed by acoustic analysis using the Praat program, through the validated multiparametric acoustic model - AVQI- to Brazilian Portuguese

Countries

Brazil

Contacts

Public ContactRenata Azevedo

Universidade Federal de São Paulo

renata.r.azevedo@uol.com+55(11) 5571-1062

Outcome results

None listed

Source: REBEC (via WHO ICTRP)