Effects of Submental Surface Electrical Stimulation on Swallowing Kinematics in Healthy Adults: An Error-Based Learning Paradigm
Effects of Submental Surface Electrical Stimulation on Swallowing Kinematics in Healthy Adults: An Error-Based Learning Paradigm
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DOI：
10.1044/2018_ajslp-17-0224
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发表时间：
2018-11-01
影响因子：
2.6
通讯作者：
Humbert, Ianessa A.
中科院分区：
文献类型：
--
作者：
Arslan, Selen Serel;Azola, Alba;Humbert, Ianessa A.
目的：吞咽时，舌骨和喉围有助于保护呼吸道(喉前庭关闭)，同时向其顶端、上位和前位移动。颧下表面电刺激(SES)是一种治疗技术，其目标是吞咽过程中移动舌骨的肌肉。目前尚不清楚颧下SES是否只增加了舌骨吞咽的峰值位置，而不是喉部的吞咽位置，这可能需要更快或更大的喉部运动才能达到足够的喉前庭闭合。方法：采用基于错误的学习范式，观察了30名健康成年人金属下SES对下喉运动学的影响。结果：金属下SES不改变任何下喉吞咽运动学。然而，智下SES在吞咽发作之前显著改变了舌骨的起始位置(更靠前；p=0.003)。平均而言，吞咽发作前的颧下SES可以将舌骨定位在接近其吞咽峰值20%的位置。结论：这些发现表明电刺激舌骨运动激动剂可能不会改变本研究测试的吞咽结果。然而，在吞咽困难患者中，通过减少吞咽障碍患者舌骨吞咽活动范围的减少而造成的吞咽损害，智下SES可能具有临床应用价值。
Purpose: Hyoid bone and laryngeal approximation aid airway protection (laryngeal vestibule closure) while moving toward their peak superior and anterior positions during swallowing. Submental surface electrical stimulation (SES) is a therapeutic technique that targets the muscles that move the hyoid bone during swallowing. It is unknown whether submental SES only increases peak hyoid bone swallowing positions but not peak laryngeal swallowing positions, which could require faster or greater laryngeal movement to achieve adequate laryngeal vestibule closure.Method: We examined the effects of submental SES on hyo-laryngeal kinematics in 30 healthy adults who swallowed 50 times using an error-based learning paradigm.Results: Submental SES did not alter any hyo-laryngeal swallowing kinematic. However, submental SES significantly changed the starting position of the hyoid bone just prior to the swallow onset (more anterior; p = .003). On average, submental SES immediately prior to swallow onset can position the hyoid approximately 20% closer to its peak swallowing point.Conclusions: These findings indicate that electrical stimulation of the agonists for hyoid movement might not alter swallowing outcomes tested in this study. However, submental SES could have clinical utility by minimizing swallowing impairments related to reduced hyoid swallowing range of motion in individuals with dysphagia.