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KMID : 0361420110350020195
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Journal of Korean Academy of Rehabilitation Medicine
2011 Volume.35 No. 2 p.195 ~ p.200
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The Effects of Neuromuscular Electrical Stimulation on Swallowing Function in Healthy Older Adults
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Oh Ki-Young
Kim Soo-A
Kwon Ki-Hyun
Kim Sun-Woo
Lee Seung-Yeol
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Abstract
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Objective: To evaluate the effects of neuromuscular electrical stimulation on the swallowing function in healthy older adults without clinical dysphagia.
Method: The subjects were 18 healthy older adults aged >70 years and 10 young adults aged <30 years without symptoms or a history of dysphagia. Both groups were evaluated by the functional dysphagia scale (FDS) and pharyngeal transit time (PTT), using a videofluoroscopic swallowing study with semisolid material. Only the healthy older adults group received neuromuscular electrical stimulation (NMES) on suprahyoid and infrahyoid muscles, 60 min/day, 5 days/wk, for 2 weeks. The healthy older adults group was then re-evaluated by FDS and PTT.
Results: The average PTT in young adults was lower than in healthy older adults. FDS of the oral phase was larger in the older adults than in the young adults. After NMES for 2 weeks in older adults, there was a significant improvement in the averages for PTT and FDS.
Conclusion: The results of this study showed that healthy older adults without clinical dysphagia had decreased swallowing function when they were compared with young adults. After NMES, the swallowing function, evaluated by FDS and PTT, was improved in healthy older adults.
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KEYWORD
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Neuromuscular electrical stimulation, Swallowing, Pharyngeal transit time
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