Combined SOVT and Respiratory Exercises: Effects on MPT and Respiratory Function
28 juni 2026 uppdaterad av: Rukiye Gülcan ANDEROĞLU, Hasan Kalyoncu University
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
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).
Studieöversikt
Status
Avslutad
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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.
Studietyp
Interventionell
Inskrivning (Faktisk)
91
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
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Gaziantep, Turkiet (Türkiye), 27000
- Hasan Kalyoncu University
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
Tar emot friska volontärer
Ja
Beskrivning
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
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
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Experimentell: SOVT-Breathing Group
The exercises, which included combined sovt and breathing exercises, were performed twice a week for 6 weeks.
The first measurement was taken in the first week, and the final measurement was taken after 6 weeks.
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The intervention group underwent combined sovt and breathing exercises.
Sovt exercises consisted of phonation exercises using a pipette.
Breathing exercises consisted of pursed-lip breathing, segmental breathing, and diaphragmatic breathing exercises.
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Inget ingripande: Control Group
The first measurement was taken in the first week, and the final measurement was taken after 6 weeks and no intervention was applied.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Voice Handicap Index (VHI-10)
Tidsram: 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.
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6 weeks
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Maximum Phonation Time (MPT)
Tidsram: 6 weeks
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Maximum Phonation Time (MPT) will be assessed by asking participants to sustain the vowel /a/ after a maximal inhalation at a comfortable pitch and loudness.
Three trials will be performed with adequate rest between trials, and the longest duration recorded in seconds will be used for analysis.
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6 weeks
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Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Forced Vital Capacity (FVC)
Tidsram: 6 weeks
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Forced vital capacity (FVC, L) will be assessed using spirometry according to ATS/ERS recommendations.
Participants will perform at least three acceptable forced expiratory maneuvers, and the highest value in liters will be recorded for analysis.
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6 weeks
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Forced Expiratory Volume in 1 Second (FEV₁)
Tidsram: 6 weeks
|
Forced expiratory volume in one second (FEV₁, L) will be assessed using spirometry according to ATS/ERS recommendations.
The highest value obtained from at least three acceptable maneuvers will be used for analysis.
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6 weeks
|
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FEV₁/FVC Ratio
Tidsram: 6 weeks
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The FEV₁/FVC ratio (%) will be calculated from spirometric measurements obtained according to ATS/ERS recommendations.
The highest acceptable values will be used for analysis.
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6 weeks
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Peak Expiratory Flow (PEF)
Tidsram: 6 weeks
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Peak expiratory flow (PEF, L/min) will be assessed using spirometry according to ATS/ERS recommendations.
The highest value obtained from at least three acceptable maneuvers will be recorded for analysis.
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6 weeks
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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Sponsor
Utredare
- Studierektor: ELIF DOKUNLU DINLER, Asst. Prof., Hasan Kalyoncu University
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Faktisk)
21 juli 2025
Primärt slutförande (Faktisk)
25 november 2025
Avslutad studie (Faktisk)
30 maj 2026
Studieregistreringsdatum
Först inskickad
15 juni 2026
Först inskickad som uppfyllde QC-kriterierna
28 juni 2026
Första postat (Faktisk)
30 juni 2026
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
30 juni 2026
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
28 juni 2026
Senast verifierad
1 juni 2026
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- HasanKU-FTR-RGA-01
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
NEJ
Läkemedels- och apparatinformation, studiedokument
Studerar en amerikansk FDA-reglerad läkemedelsprodukt
Nej
Studerar en amerikansk FDA-reglerad produktprodukt
Nej
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