Investigating the effects of combining nebulization with vocal warm-up exercises on voice quality and laryngeal symptoms in primary school teachers

Investigating the effects of combining nebulization with vocal warm-up exercises on voice quality and laryngeal symptoms in primary school teachers: a clinical trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20250410065279N1

Enrollment

Registered

2025-04-20

Start date

2025-04-26

Completion date

Unknown

Last updated

2025-07-21

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

Conditions

voice related problems.

Interventions

Intervention 1: Intervention group:This group consists of 10 teachers who will receive a combined treatment of vocal warm-up exercises and nebulization in 10 sessions, five times per week, over two co

Eligibility

Sex/Gender

All

Age

No minimum to 50 Years

Inclusion criteria

Inclusion criteria: Employment as a teacher at a school during the time of the study No history of previous surgeries on the neck or larynx No hormonal disorders Not having entered menopause No use of cigarettes, alcoholic beverages, or any kind of narcotics No use of medications affecting the voice or larynx Age below 50 years

Exclusion criteria

Exclusion criteria: Lack of willingness to continue treatment Occurrence of any illness that prevents continuation of the treatment process or affects laryngeal function or the individual’s voice condition Previous history of voice therapy

Design outcomes

Primary

Measure	Time frame
In this study, the voice quality of teachers will be evaluated using various indicators, including the Consensus Auditory-Perceptual Evaluation of Voice, measurements of voice frequency and intensity, the frequency and intensity of pain, and the frequency and intensity of discomfort in the vocal tract. These variables are considered as the primary outcomes of the study. Timepoint: Before the first treatment session and after the 10th session at the end of the second week. Method of measurement: Praat software, Persian version of Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V), Acoustic assessment of voice, The Voice-Related Pain Scale (VRPS), Vocal Tract Discomfort Scale (VTD).	—

Measure

Time frame

In this study, the voice quality of teachers will be evaluated using various indicators, including the Consensus Auditory-Perceptual Evaluation of Voice, measurements of voice frequency and intensity, the frequency and intensity of pain, and the frequency and intensity of discomfort in the vocal tract. These variables are considered as the primary outcomes of the study. Timepoint: Before the first treatment session and after the 10th session at the end of the second week. Method of measurement: Praat software, Persian version of Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V), Acoustic assessment of voice, The Voice-Related Pain Scale (VRPS), Vocal Tract Discomfort Scale (VTD).

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactAtiyeh Talebpour Sarasekanrood

Semnan University of Medical Sciences

atiyeh.t1999@gmail.com3971974887

Outcome results

None listed

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