Combined SOVT and Respiratory Exercises: Effects on MPT and Respiratory Function
28. juni 2026 oppdatert 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).
Studieoversikt
Status
Fullført
Intervensjon / Behandling
Detaljert beskrivelse
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.
Studietype
Intervensjonell
Registrering (Faktiske)
91
Fase
- Ikke aktuelt
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
-
-
-
Gaziantep, Tyrkia (Türkiye), 27000
- Hasan Kalyoncu University
-
-
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
Tar imot friske frivillige
Ja
Beskrivelse
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
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: 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.
|
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.
|
|
Ingen inngripen: 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.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Voice Handicap Index (VHI-10)
Tidsramme: 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.
|
6 weeks
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Maximum Phonation Time (MPT)
Tidsramme: 6 weeks
|
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.
|
6 weeks
|
Andre resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Forced Vital Capacity (FVC)
Tidsramme: 6 weeks
|
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.
|
6 weeks
|
|
Forced Expiratory Volume in 1 Second (FEV₁)
Tidsramme: 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.
|
6 weeks
|
|
FEV₁/FVC Ratio
Tidsramme: 6 weeks
|
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.
|
6 weeks
|
|
Peak Expiratory Flow (PEF)
Tidsramme: 6 weeks
|
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.
|
6 weeks
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Studieleder: ELIF DOKUNLU DINLER, Asst. Prof., Hasan Kalyoncu University
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart (Faktiske)
21. juli 2025
Primær fullføring (Faktiske)
25. november 2025
Studiet fullført (Faktiske)
30. mai 2026
Datoer for studieregistrering
Først innsendt
15. juni 2026
Først innsendt som oppfylte QC-kriteriene
28. juni 2026
Først lagt ut (Faktiske)
30. juni 2026
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
30. juni 2026
Siste oppdatering sendt inn som oppfylte QC-kriteriene
28. juni 2026
Sist bekreftet
1. juni 2026
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- HasanKU-FTR-RGA-01
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
NEI
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Nei
Studerer et amerikansk FDA-regulert enhetsprodukt
Nei
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .