Evaluation of Dysphagia by 6-chnnel Surface Electromyography
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|ClinicalTrials.gov Identifier: NCT03494361|
Recruitment Status : Completed
First Posted : April 11, 2018
Last Update Posted : July 23, 2020
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.
|Condition or disease|
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 Type :||Observational|
|Actual Enrollment :||40 participants|
|Official Title:||Evaluation of Dysphagia by 6-chnnel Surface Electromyography and Preliminary Study for Design 6-channel Electrical Stimulation|
|Actual Study Start Date :||July 4, 2016|
|Actual Primary Completion Date :||November 21, 2017|
|Actual Study Completion Date :||November 21, 2017|
Young normal group
normal participants below 60 years
Old normal group
normal participants above 60 years
- Latency [ Time Frame: once at study, when patient enrolled ]the latency of muscular activation
- duration [ Time Frame: once at study, when patient enrolled ]the contractile duration of evaluated muscles