Tongue Muscular Assessment in Children (TMAC) - Reproducibility Testing

April 28, 2026 updated by: William Poncin, Université Catholique de Louvain
This study aims to assess intra-rater and inter-rater reliability in measuring tongue motor skills in children.

Study Overview

Detailed Description

Several motor skills of the tongue can be described: tongue elevation, swallowing, and protrusion. They are all relevant for a wide array of disorders, including neurological, musculoskeletal, and respiratory conditions. An ongoing study by our team is attempting to collect normative data on these motor skills in a pediatric cohort (NCT06166680). From this ongoing study, 56 subjects will be selected to assess the intra-rater and inter-rater reliability in measuring these motor skills.

Study Type

Observational

Enrollment (Actual)

56

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Brussels Capital
      • Woluwe-Saint-Lambert, Brussels Capital, Belgium, 1200
        • Cliniques Universitaires Saint-Luc

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Healthy children aged between 4 and 17 years old

Description

Inclusion Criteria:

  • Aged between 4 and 17 years old

Exclusion Criteria:

  • Eating disorder
  • Dysphagia
  • Cardiorespiratory disorder
  • Neurological disorder (including neuromuscular disorders)
  • Previous or ongoing obstructive sleep apnea-hypopnea syndrome
  • Previous or ongoing cancer of the head or neck
  • Previous oral or pharyngeal surgery (except for the surgical removal of wisdom teeth)
  • Cranial, oral or upper airway malformation (ex.: nasal cavities, pharynx)
  • Previous or ongoing orthodontic treatment (e.g. braces)
  • More than 33% of positive answers to the Pediatric Sleep Questionnaire (≥ 8/22)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Inter-rater reliability and intra-rater reliability

Tongue protrusion, elevation and swallowing measurements will be assessed at three time points, each interspersed by a one-week to one-month interval.

Assessments will be conducted by the same rater during two of these time points, whereas another independent rater will conduct the assessments of the third time point.

1. Pediatric Sleep Questionnaire.
2. Anthropometric data : 2.1 Height; 2.2 Weight; 2.3 Maximal mouth opening; 2.4 Maximal mouth opening with tongue to palate The measures 2.3 and 2.4 will be realized via the Quick Tongue-Tie assessment tool
3. Tongue pressure while swallowing. 4. Tongue peak pressure during tongue elevation. 5. Tongue peak pressure during tongue protrusion. These measures will be realized via the IOPI (Iowa Oral Performance Instrument) device.
6. The tongue endurance during tongue elevation. 7. The tongue endurance during tongue protrusion. These measures will be realized via the IOPI (Iowa Oral Performance Instrument) device and a timer.
8. Motricité Bucco-Linguo-Faciale (MBLF) test.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Test-retest reproducibility of tongue peak pressure
Time Frame: Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Tongue peak pressure during elevation and protrusion movements will be measured. The inter-rater and intra-rater reliability of these measures will be computed.
Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Test-retest reproducibility of tongue endurance
Time Frame: Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Tongue endurance during elevation and protrusion movements will be measured. The inter-rater and intra-rater reliability of these measures will be computed.
Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Test-retest reproducibility of tongue pressure during swallowing
Time Frame: Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Tongue pressure during swallowing will be measured. The inter-rater and intra-rater reliability of these measures will be computed.
Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Test-retest reproducibility of tongue mobility restriction
Time Frame: Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Assessed through the ratio between maximal mouth opening and maximal mouth opening with tongue to palate. The inter-rater and intra-rater reliability of these measures will be computed.
Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Test-retest reproducibility of orofacial praxis
Time Frame: Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval
Orofacial praxis will be assessed. The inter-rater and intra-rater reliability of this measure will be computed.
Measured at baseline, and then at two other time points. These three time points will each be interspersed by a one-week to one-month interval

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: William Poncin, Prof, Université Catholique de Louvain

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 15, 2024

Primary Completion (Actual)

June 15, 2025

Study Completion (Actual)

June 15, 2025

Study Registration Dates

First Submitted

June 12, 2024

First Submitted That Met QC Criteria

June 12, 2024

First Posted (Actual)

June 18, 2024

Study Record Updates

Last Update Posted (Actual)

April 29, 2026

Last Update Submitted That Met QC Criteria

April 28, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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