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DDK Acoustic Analysis and Swallowing Indicators (AAP-DDK)

2026年5月29日 更新者：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.

調査の概要

状態

まだ募集していません

条件

詳細な説明

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.

研究の種類

観察的

入学 (推定)

720

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

  • 名前：HUNG C F Kaohsiung Medical University, MASTER
  • 電話番号：#2646 #614 +8867-3121101
  • メール：gabino00076@gmail.com

研究場所

  • 台湾
    • Taiwan
      • Kaohsiung City、Taiwan、台湾、807
        • Department of Sports Medicine, Kaohsiung Medical University, Taiwan
        • コンタクト：
        • コンタクト：
          • L Y GUO Professor and Dean of the college of Health Sciences, Doctorate
          • 電話番号：#2646 #624 +8867-3121101
          • メール：yuen@kmu.edu.tw
        • 副調査官：
          • C F HUNG, Master

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

はい

サンプリング方法

非確率サンプル

調査対象母集団

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.

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか？

デザインの詳細

コホートと介入

グループ/コホート
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.

この研究は何を測定していますか？

主要な結果の測定

結果測定
メジャーの説明
時間枠
Repetitive Saliva Swallowing Test Classification
時間枠：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

二次結果の測定

結果測定
メジャーの説明
時間枠
Eating Assessment Tool-10 Total Score
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：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

その他の成果指標

結果測定
メジャーの説明
時間枠
Participant Age
時間枠：Day 1
Age of participants collected at baseline, reported in years.
Day 1
Participant Sex
時間枠：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
時間枠：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
時間枠：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
時間枠：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
時間枠：Day 1
Self-reported frequency of dry mouth symptoms collected at day 1, categorized as never, occasionally, frequently, or always.
Day 1
Smoking History
時間枠：Day 1
Self-reported smoking history collected at baseline, categorized as never smoker, former smoker, or current smoker.
Day 1
Medical History
時間枠：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

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

Kaohsiung Medical University

捜査官

  • スタディチェア：GUO L Y Professor and Dean of the College of Health Sciences, Departme, Ph. D.、Department of Sports Science, Kaohsiung Medical University, Taiwan

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年6月15日

一次修了 (推定)

2030年4月9日

研究の完了 (推定)

2030年4月9日

試験登録日

最初に提出

2026年5月22日

QC基準を満たした最初の提出物

2026年5月29日

最初の投稿 (実際)

2026年6月4日

学習記録の更新

投稿された最後の更新 (実際)

2026年6月4日

QC基準を満たした最後の更新が送信されました

2026年5月29日

最終確認日

2026年5月1日

詳しくは

本研究に関する用語

キーワード

追加の関連 MeSH 用語

その他の研究ID番号

  • KMUHIRB-F(II)-20260160 (その他の識別子：IRB of KMUH)

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

はい

IPD プランの説明

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 共有時間枠

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 共有アクセス基準

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 共有サポート情報タイプ

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • CSR

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