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Commun Sci Disord. 2009;14(1): 109-116.
Temporal and Biomechanical Measurements of Upper Esophageal Sphincter (UES) Opening in Normal Swallowing
Youngsun Kim`
Copyright ©2009 The Korean Academy of Speech-Language Pathology and Audiology
김영선(Youngsun Kim)
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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.
Videotapes of videofluoroscopic swallowing examinations (VFSEs) of 69 normal subjects were analyzed.
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
Keywords: 상식도조임근 | 삼킴 | 시간적 | 생체역학적 | 연령 upper esophageal sphincters (UES) | swallowing | temporal
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