Effectiveness of a combined voice therapy program on the characteristics of the voice of speech and language pathologists

Effectiveness of a combined voice therapy program on the acoustic, stroboscopic, aerodynamic, and perceptual characteristics of the voice of speech and language pathologists with voice complaint

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20250610066170N1

Enrollment

Registered

2025-09-22

Start date

2025-09-23

Completion date

Unknown

Last updated

2025-10-13

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

Conditions

Voice complaint. Unspecified voice and resonance disorder

Interventions

Intervention 1: Intervention group: For six weeks, participants in the experimental group will receive 45-60 minutes of combined voice therapy twice a week, including: voice hygiene education, symptom

Eligibility

Sex/Gender

All

Age

25 Years to 50 Years

Inclusion criteria

Inclusion criteria: Participants must be between 25 to 50 years of age. Participants must have at least 3 years of experience in the field of speech therapy. Participants must be actively engaged in speech therapist for a minimum of 12 hours per week. Participants must not have a history of voice therapy. Participants must not have a history of head and neck surgery. Participants must not have a history of psychological problems or depression. Participants must not have a history of neurological or progressive disease. Female participants must not be menstruating during data collection. Participants must report at least one voice complaint in addition to hoarseness or vocal fatigue. Participants should be free from any symptoms of cold, influenza, or respiratory infection during the evaluation period or within two weeks leading up to it.

Exclusion criteria

Exclusion criteria: lack of willingness to continue cooperation with the research team. Failure to obtain a high-quality voice sample for acoustic analysis. The participant presents with a mucosal lesion in the larynx.

Design outcomes

Primary

Measure	Time frame
Anterior posterior constriction pattern. Timepoint: Before treatment and six weeks after treatment initiation. Method of measurement: Voice-vibratory assessment and laryngeal imaging (VALI).;Medial lateral constriction pattern. Timepoint: Before treatment and six weeks after treatment initiation. Method of measurement: Voice-vibratory assessment and laryngeal imaging (VALI).;Glottal closure pattern. Timepoint: Before treatment and six weeks after treatment initiation. Method of measurement: Voice-vibratory assessment and laryngeal imaging (VALI).	—

Measure

Time frame

Anterior posterior constriction pattern. Timepoint: Before treatment and six weeks after treatment initiation. Method of measurement: Voice-vibratory assessment and laryngeal imaging (VALI).;Medial lateral constriction pattern. Timepoint: Before treatment and six weeks after treatment initiation. Method of measurement: Voice-vibratory assessment and laryngeal imaging (VALI).;Glottal closure pattern. Timepoint: Before treatment and six weeks after treatment initiation. Method of measurement: Voice-vibratory assessment and laryngeal imaging (VALI).

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactMahsa Farhadi

Iran University of Medical Sciences

Farhadi.ma@iums.ac.ir+98 21 2222 8051

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026