Effects of Combined Semi-Occluded Vocal Tract (SOVT) and Respiratory Exercises on Maximum Phonation Time (MPT) and Respiratory Function in Conservatory Students Across Different Academic Years
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 91
- Locations
- 1
- Primary Endpoint
- Voice Handicap Index (VHI-10)
Study Overview
Brief Summary
This study aims to investigate the effects of combined SOVT and breathing exercises, administered twice weekly for six weeks to conservatory students, through a randomized controlled trial. The study has two hypotheses: H1: Combined SOVT and breathing exercises increase the maximum phonation duration. H2: Combined SOVT and breathing exercises improve spirometric parameters (FEV₁, FVC, FEV₁/FVC, and PEF).
Detailed Description
This study aims to investigate the effects of combined SOVT and breathing exercises, applied twice a week for 6 weeks, on conservatory students at Gaziantep University through a randomized controlled trial. The study has two hypotheses: H1: Combined SOVT and breathing exercises increase maximum phonation duration. H2: Combined SOVT and breathing exercises improve spirometric parameters (FEV₁, FVC, FEV₁/FVC, and PEF). In the intervention group, phonation exercises using a pipette were taught and practiced as part of the SOVT exercise. Simultaneously, pursed-lip breathing, segmental breathing, and diaphragmatic breathing exercises were taught and practiced as breathing exercises. At the end of 6 weeks, the maximum phonation duration of all participants was measured with a stopwatch. Additionally, spirometric parameters were measured using a spirometer.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 35 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Being between 18 and 35 years of age
- •Being an undergraduate student studying vocal training at a state conservatory
- •Volunteering to actively participate in the research process and signing the written consent form
Exclusion Criteria
- •• Having been diagnosed with any voice disorder (e.g., nodule, polyp, laryngitis, dysphonia, etc.)
- •Having received voice therapy, voice surgery, or respiratory physiotherapy in the past
- •Having an acute or chronic respiratory disease (e.g., asthma, COPD, bronchitis)
- •Participants who have had an upper respiratory tract infection in the last two weeks
- •Participants with a neurological, psychiatric, or cardiopulmonary system diagnosis
- •Participants who declare that they cannot regularly attend the exercise protocol
Outcomes
Primary Outcomes
Voice Handicap Index (VHI-10)
Time Frame: 6 weeks
The Voice Handicap Index (VHI) will be used to assess participants' self-perceived voice-related handicap. The questionnaire consists of items evaluating the functional, physical, and emotional impact of voice problems. Total scores range from 0 to 40, with higher scores indicating greater perceived voice handicap.
Secondary Outcomes
- Maximum Phonation Time (MPT)(6 weeks)
Investigators
Rukiye Gülcan ANDEROĞLU
Physiotherapist
Hasan Kalyoncu University