Hyoid motion during swallowing: Factors affecting forward and upward displacement
Hyoid motion during swallowing: Factors affecting forward and upward displacement
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DOI：
10.1007/s00455-002-0064-5
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发表时间：
2002-09-01
期刊：
影响因子：
2.6
通讯作者：
Hiiemae, KM
中科院分区：
文献类型：
--
作者：
Ishida, R;Palmer, JB;Hiiemae, KM
在吞咽过程中，舌骨被描述为首先向上移动，然后向前移动，然后返回到起始位置。这项研究探讨了舌骨运动吞咽咀嚼固体和液体。对12名健康志愿者进行了钡荧光造影（VFG），他们吃了8 cc的各种固体食物和饮用液体。舌骨的位置进行了测量，一帧一帧的88燕子相对于上牙的咬合平面。舌骨在吞咽过程中向上和向前移动，但向上位移有时很小。舌骨向上和向前位移的幅度之间没有相关性。向上位移的幅度变化很大，液体食物小于固体食物（p < 0.001），第一次吞咽固体食物大于第二次吞咽（p = 0.02）。前向位移的幅度在液体和固体之间或在第一次和第二次吞咽之间没有显著差异。我们的结论是，向上位移的舌骨吞咽主要是在口腔中的事件，而其向前位移与咽过程，特别是上食管括约肌的开放。
During swallowing, the hyoid bone is described as moving first upward, then forward, then returning to the starting position. This study examined hyoid motion during swallowing of chewed solids and liquids. Barium videofluorography (VFG) was performed on 12 healthy volunteers eating 8-cc portions of various solid foods and drinking liquid. Hyoid position was measured frame-by-frame for 88 swallows relative to the occlusal plane of the upper teeth. The hyoid bone moved both upward and forward during swallowing, but upward displacement was sometimes very small. There was no correlation between the amplitudes of hyoid upward and forward displacements. The amplitude of upward displacement was highly variable, smaller for liquids than for solid foods (p < 0.001), and, for solid foods, larger for the first swallow than for the second swallow (p = 0.02). The amplitude of forward displacement did not differ significantly between liquids and solids or between first and second swallows. We conclude that upward displacement of the hyoid bone in swallowing is related primarily to events in the oral cavity, while its forward displacement is related to pharyngeal processes, especially the opening of the upper esophageal sphincter.