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KMID : 0921420090140010108
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Korean Journal of Communication Disorders
2009 Volume.14 No. 1 p.108 ~ p.114
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Temporal and Biomechanical Measurements of Upper Esophageal Sphincter (UES) Opening in Normal Swallowing
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Kim Young-Sun
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Abstract
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Background & Objectives: The purpose of this study was to examine the temporal and biomechanical differences of duration and width of the UES opening among people of different ages and genders during normal swallowing.
Methods: Videotapes of videofluoroscopic swallowing examinations (VFSEs) of 69 normal subjects were analyzed.
Results: Results yielded a significant effect for age between younger and older subjects for both duration of UES opening (DUESO) and maximum width of UES opening (MWUESO) (p < .01). No gender differences were observed.
Discussion & Conclusion: These differences may be related to muscle weakness with aging. However, older subjects did not show aspiration. These normal data of UES opening will be used for comparisons with stroke patients who exhibit aspiration in future research.
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KEYWORD
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upper esophageal sphincters (UES), swallowing, temporal, biomechanical, age
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