Dysphonia Voice disturbances
Conditions
Interventions
This is a randomized, controlled, double-blind clinical trial with a crossover design and six intervention conditions. A total of 60 women participated, including 30 with behavioral dysphonia and 30 v
Group 2 – Transcutaneous Electrical Nerve Stimulation (TENS) combined with vocal exercises
Group 3 – Burst Modulated Alternating Current (BMAC)
Group 4 – Burst Modulated Alternating Current (BMAC) combined with vocal exercises
Group 5 – placebo electrostimulation
and Group 6 – placebo electrostimulation combined with vocal exercises. Participants were unaware of the type of electrical current applied, ensuring participant blinding. Furthermore, there was a sep
Sponsors
Universidade Federal do Rio Grande do Norte
Universidade Federal do Rio Grande do Norte
Eligibility
Sex/Gender
Female
Age
18 Years to 50 Years
Inclusion criteria
Inclusion criteria: Women with an otorhinolaryngological diagnosis of behavioral dysphonia, aged between 18 and 50 years. For the non-dysphonic group, women with self-reported good health, without vocal complaints or alterations, aged between 18 and 50 years, will be included.
Exclusion criteria
Exclusion criteria: For both groups: pregnant women; individuals with self-reported health conditions such as cardiac, pulmonary, hearing, neurological, or psychiatric disorders, or a diagnosis of organic dysphonia; those who have previously undergone speech-language therapy for voice; and those who have previously received electrotherapy for any type of treatment
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected outcome 1: A reduction in musculoskeletal pain is expected after the electrotherapy interventions, while pain intensity is expected to remain unchanged after the placebo condition and in the vocally healthy group;Observed outcome 1: A reduction in musculoskeletal pain in the laryngeal region and in areas proximal to the larynx was observed across all intervention groups, including the placebo condition, in the dysphonic group. Data from the vocally healthy group have not yet been collected | — |
Secondary
| Measure | Time frame |
|---|---|
| Expected outcome 2: A decrease in the multiparametric acoustic measures Acoustic Voice Quality Index (AVQI) and Acoustic Breathiness Index (ABI), along with an increase in Cepstral Peak Prominence Smoothed (CPPS), is expected for all intervention groups except for the placebo condition, with no changes expected in the vocally healthy group;Observed outcome 2: No differences were found in the acoustic parameters after any of the electrotherapy modalities, including the placebo condition, and no differences were observed among women with behavioral dysphonia. Data from the vocally healthy group have not yet been collected to date | — |
Countries
BR
Contacts
Public ContactLarissa Siqueira
Universidade Federal do Rio Grande do Norte
Outcome results
None listed