Association between mouth opening and upper body movement with intake of different-size food pieces during eating
Association between mouth opening and upper body movement with intake of different-size food pieces during eating
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DOI：
10.1016/j.archoralbio.2011.08.023
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发表时间：
2012-03-01
影响因子：
3
通讯作者：
Yamasaki, Y.
中科院分区：
文献类型：
--
作者：
Inada, E.;Saitoh, I.;Yamasaki, Y.
张口时头部旋转与下颌运动协调，且头部旋转和张口的范围随食物大小而变化。然而，过去的研究并没有包括上半身的运动，也没有报告说，在现实的饮食过程中，头部和下颌骨的运动。本研究的目的是分析头部和下颌运动的摄入不同大小的食物块在现实的饮食。测试食品包括苹果切成两个不同的立方体大小（10毫米和20毫米）。用无线光电系统同时记录20名健康青年进食苹果块时头部和下颌的三维运动。将反射标记物附着在上唇和下巴上以测量开口范围。将五个标记物附接到眼镜框架以测量头部的线性运动和旋转。将一个标记物附接到胸骨的颈静脉切迹以测量上身的线性运动。比较了不同大小苹果块摄入时的直线运动、头部和上身的倾斜角度以及张口幅度，结果表明，随着苹果块的增大，张口度、头颈旋转角度、上身向前平移量和倾斜量均增大。然而，孤立的相对头部运动是稳定的。我们的结论是，上身向前运动和头颈部旋转协助开口，同时稳定头部的方向，和头部颈部旋转角度的范围，上身平移和开口范围的变化与食物的大小在现实的饮食。(C)2011年。爱思唯尔有限公司版权所有。
Head rotation is coordinated with mandibular movement during mouth opening, and the range of head rotation and mouth opening change with food size. However, past research did not include upper body movement, and no reports have related head and mandibular movement during realistic eating. The purpose of this study was to analyse head and mandibular movements with intake of different-sized food pieces during realistic eating.The test food consisted of apple cut into two different cube sizes (10 mm and 20 mm). Head and mandibular movements of 20 healthy young adults eating the apple pieces were simultaneously recorded in three dimensions by a wireless opto-electronic system. Reflective markers were attached to the upper lip and chin to measure the mouth opening range. Five markers were attached to eyeglasses frames to measure linear motion and rotation of the head. One marker was attached to the jugular notch of the sternum to measure linear motion of the upper body. Linear motion, and the inclination angle of the head and upper body, and mouth opening range were compared during intake of different-sized apple pieces.Mouth opening, head-neck rotation angle and the amount of upper body forward translation and inclination increased with larger apple pieces. However, isolated relative head motion was stabilized. We conclude that upper body forward motion and head-neck rotation assist mouth opening whilst stabilizing head orientation, and that the range of head-neck rotation angle, upper body translation and range of mouth opening change with food size during realistic eating. (C) 2011. Elsevier Ltd. All rights reserved.