Evaluation of Dysphagia by 6-chnnel Surface Electromyography

Status Completed

Clinical Trial Summary

The natural process of aging affects a few very specific timing parameters such as swallow reaction time and hyoid one movement velocity.

Many swallow timing and bolus transit parameters appear to be unaffected by aging. We want to know the changes of kinematic variables according to the aging process.

First hypothesis: There are probably be a protection mechanism that blocks functional loss progressing to kinematic abnormality. Muscle activation sequence change (i.e duration or amplitude) of the oropharyngeal muscles play an important role.

Second hypothesis: Age-related differences in muscle activation patterns will also appear differently depending on the characteristics of swallowed food.

Clinical Trial Description

Inclusion criteria

Inclusion criteria of healthy older adults : Age > 60, without dysphagia, comorbidity

Inclusion criteria of young control group

: Age < 60, without dysphagia, comorbidity

No prior history of swallowing difficulty or history of central nervous system disease, and none were taking medication that are known to affect swallowing.

Surface EMG was performed at bilateral suprahyoid, thyrohyoid, sternothyroid and pharyngeal constrictors. The latency of activation and termination was checked. ;

Study Design

Related Conditions & MeSH terms

Deglutition Disorders

Clinical Trial Details

NCT number	NCT03494361
Study type	Observational
Source	Seoul National University Hospital
Contact
Status	Completed
Phase
Start date	July 4, 2016
Completion date	November 21, 2017

View Details

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