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DDK Acoustic Analysis and Swallowing Indicators (AAP-DDK)

29 mei 2026 bijgewerkt door: Chen-Fu Hung, Kaohsiung Medical University

Acoustic Analysis of Performance in Diadochokinetic (DDK) Tasks and Swallowing Function Indicators Among Adults Across Different Age Groups

This study examines whether simple speech tasks and a swallowing screening test can help identify swallowing risk in adults of different ages. Participants will complete basic questions, a swallowing self-assessment, a saliva swallowing test, and short voice recordings of rapid syllables. The study is non-invasive, takes about 75 minutes, and may help develop an easy, low-cost screening tool for early swallowing problems.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Gedetailleerde beschrijving

This is a cross-sectional observational study examining the relationship between diadochokinetic (DDK) speech performance and swallowing function in community-dwelling adults aged 18 years and older. Participants will complete a single study visit, during which demographic and health-related information will be collected, the EAT-10 swallowing self-assessment will be administered, the Repetitive Saliva Swallowing Test (RSST) will be performed, and short DDK speech recordings of /pa/, /ta/, and /ka/ will be obtained in a quiet setting. Acoustic features will be extracted from the recordings and analyzed together with RSST and EAT-10 results to explore age-related differences and to develop a predictive screening model for swallowing risk. All data will be de-identified, securely stored, and retained according to study requirements.

Studietype

Observationeel

Inschrijving (Geschat)

720

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

  • Naam: HUNG C F Kaohsiung Medical University, MASTER
  • Telefoonnummer: #2646 #614 +8867-3121101
  • E-mail: gabino00076@gmail.com

Studie Locaties

  • Taiwan
    • Taiwan
      • Kaohsiung City, Taiwan, Taiwan, 807
        • Department of Sports Medicine, Kaohsiung Medical University, Taiwan
        • Contact:
        • Contact:
          • L Y GUO Professor and Dean of the college of Health Sciences, Doctorate
          • Telefoonnummer: #2646 #624 +8867-3121101
          • E-mail: yuen@kmu.edu.tw
        • Onderonderzoeker:
          • C F HUNG, Master

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Ja

Bemonsteringsmethode

Niet-waarschijnlijkheidssteekproef

Studie Bevolking

The study population consists of community-dwelling adults aged 18 years and older, with no upper age limit, who are able to communicate in Mandarin or Taiwanese, provide informed consent, and complete DDK tasks, RSST, and EAT-10 assessment. Participants will be recruited from community organizations and related settings in the Kaohsiung-Pingtung region. The study uses a single-visit observational design with age-based subgroup analyses and no intervention.

Beschrijving

Inclusion Criteria:

  • 1.Community-dwelling adults aged 18 years or older, with no upper age limit.
  • 2.Ability to communicate in Mandarin or Taiwanese and understand the study procedures.
  • 3.Willingness to provide written informed consent.
  • 4 .Ability to complete the DDK tasks and RSST.

Exclusion Criteria:

  • 1.Presence of acute respiratory infection, upper respiratory inflammation, or other acute conditions that may significantly affect speech or swallowing.
  • 2.Impaired consciousness, significant cognitive deficits, or inability to understand the study procedures.
  • 3.Recent surgery or radiotherapy involving the oral cavity or pharynx that affects speech or swallowing.
  • 4.Severe hearing impairment that prevents understanding of instructions.
  • 5.Any other condition deemed unsuitable for participation by the investigators.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

Cohorten en interventies

Groep / Cohort
Age-Based Cohort
Community-dwelling adults aged 18 years and older who complete a single study visit including demographic questionnaire, EAT-10, RSST, and DDK speech recordings. This is an observational cohort with no intervention, and data will be analyzed by age group.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Repetitive Saliva Swallowing Test Classification
Tijdsspanne: Day 1
Classification of swallowing function based on the Repetitive Saliva Swallowing Test (RSST). Participants will be classified as having normal RSST performance if they complete greater than or equal to 3 swallows in 30 seconds, and abnormal RSST performance if they complete fewer than 3 swallows in 30 seconds.
Day 1

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Eating Assessment Tool-10 Total Score
Tijdsspanne: Day 1
Total score on the Eating Assessment Tool-10 (EAT-10), a 10-item self-report questionnaire used to assess swallowing-related symptoms. The total score ranges from 0 to 40, where higher scores indicate worse swallowing-related symptoms. A score of 3 or higher suggests possible swallowing difficulty.
Day 1
Diadochokinetic Speech Rate
Tijdsspanne: Day 1
Rate of repeated diadochokinetic speech productions of /pa/, /ta/, and /ka/. The rate will be reported as syllables per second.
Day 1
Diadochokinetic Speech Fundamental Frequency
Tijdsspanne: Day 1
Fundamental frequency (F0) extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. Fundamental frequency will be reported in Hertz (Hz).
Day 1
Diadochokinetic Speech First Formant Frequency
Tijdsspanne: Day 1
First formant frequency (F1) extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. F1 reflects the first resonance frequency of the vocal tract and will be reported in Hertz (Hz).
Day 1
Diadochokinetic Speech Second Formant Frequency
Tijdsspanne: Day 1
Second formant frequency (F2) extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. F2 reflects the second resonance frequency of the vocal tract and will be reported in Hertz (Hz).
Day 1
Diadochokinetic Speech Jitter
Tijdsspanne: Day 1
Jitter extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. Jitter reflects short-term cycle-to-cycle variability in fundamental frequency and will be reported as a percentage.
Day 1
Diadochokinetic Speech Shimmer
Tijdsspanne: Day 1
Shimmer extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. Shimmer reflects short-term variability in voice amplitude and will be reported in decibels (dB).
Day 1
Diadochokinetic Speech Harmonics-to-Noise Ratio
Tijdsspanne: Day 1
Harmonics-to-noise ratio (HNR) extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. HNR reflects the ratio of periodic harmonic energy to noise energy in the voice signal and will be reported in decibels (dB).
Day 1
Diadochokinetic Speech Root Mean Square Amplitude
Tijdsspanne: Day 1
Root mean square (RMS) amplitude extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. RMS amplitude reflects the average acoustic energy of the speech signal and will be reported in normalized amplitude units.
Day 1
Diadochokinetic Speech Zero-Crossing Rate
Tijdsspanne: Day 1
Zero-crossing rate (ZCR) extracted from repeated diadochokinetic (DDK) speech recordings of /pa/, /ta/, and /ka/. ZCR reflects the rate at which the speech signal changes sign over time and will be reported as the number of zero crossings per second.
Day 1

Andere uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Participant Age
Tijdsspanne: Day 1
Age of participants collected at baseline, reported in years.
Day 1
Participant Sex
Tijdsspanne: Day 1
Sex of participants collected on Day 1, reported as male or female according to the study case report form.
Day 1
Education Level
Tijdsspanne: Day 1
Highest level of education completed by participants collected at baseline, categorized as primary school or below, junior high school, senior high school, or college or above.
Day 1
Body Mass Index
Tijdsspanne: Day 1
Body mass index (BMI) calculated from measured height and weight at baseline. Height will be measured in meters and weight in kilograms; BMI will be reported in kg/m².
Day 1
Dentition Status
Tijdsspanne: Day 1
Dentition status of participants collected at day 1, categorized as natural dentition, partial denture, full denture, or other.
Day 1
Dry Mouth Frequency
Tijdsspanne: Day 1
Self-reported frequency of dry mouth symptoms collected at day 1, categorized as never, occasionally, frequently, or always.
Day 1
Smoking History
Tijdsspanne: Day 1
Self-reported smoking history collected at baseline, categorized as never smoker, former smoker, or current smoker.
Day 1
Medical History
Tijdsspanne: Day 1
Self-reported medical history collected at day 1 and categorized as none, hypertension, hyperglycemia, hyperlipidemia, or gastrointestinal disease (such as gastroesophageal reflux disease).
Day 1

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Kaohsiung Medical University

Onderzoekers

  • Studie stoel: GUO L Y Professor and Dean of the College of Health Sciences, Departme, Ph. D., Department of Sports Science, Kaohsiung Medical University, Taiwan

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

15 juni 2026

Primaire voltooiing (Geschat)

9 april 2030

Studie voltooiing (Geschat)

9 april 2030

Studieregistratiedata

Eerst ingediend

22 mei 2026

Eerst ingediend dat voldeed aan de QC-criteria

29 mei 2026

Eerst geplaatst (Werkelijk)

4 juni 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

4 juni 2026

Laatste update ingediend die voldeed aan QC-criteria

29 mei 2026

Laatst geverifieerd

1 mei 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • KMUHIRB-F(II)-20260160 (Andere identificatie: IRB of KMUH)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

De-identified individual participant data collected during the trial, including baseline characteristics, intervention-related measures, and outcome data, will be shared with a data dictionary.

IPD-tijdsbestek voor delen

De-identified individual participant data (IPD) and supporting information will be available starting 2 years after publication of the primary study results and will remain accessible for 5 years.

IPD-toegangscriteria voor delen

De-identified individual participant data and related supporting documents will be made available only to qualified researchers affiliated with academic institutions, medical organizations, or public health agencies. Requesters must submit a detailed research proposal and evidence of ethical approval. Access will be granted subject to approval by the study team.

IPD delen Ondersteunend informatietype

  • LEERPROTOCOOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • MVO

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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