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Study on the relationship between the head movements and the body movement during rhythmical jaw movements

下颌节律运动时头部运动与身体运动关系的研究

基本信息

批准号：
15209067
负责人：
KOHNO Shoji
金额：
$ 16.89万
依托单位：
Niigata University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

The aim of this study was to evaluate the relationship between the stomatognathic function and the systemic condition from a viewpoint of body movements in the standing and seating positions. We designed and developed a new six-degree-of-freedom tracking device (TRIMET□), and used it for the three-dimensional registration of head and mandibular movements. Body movements were also measured using two motion capture devices (ProReflex), placed in the ceiling. Furthermore, we built a new system to analyze simultaneously these three kinds of data on the same time-axis. For mandibular movement, the lower incisal point was recorded on the maxilla reference frame. For head movement, the upper incisal point, the parietal point, the occtipital point, and the condylar points were recorded on the ground reference frame. Simultaneously, the motion of the sternum point was recorded and analyzed on the ground reference frame. The subjects were 6 males with normal stomatognathic functions, aged 25〜29 … More years, with a mean age of 27 years.On the seating position, the head extension was observed during mouth opening and the head flexion was observed during mouth closure. Synchronizing with these head movements, the body moved anteriorly with mouth opening and moved posteriorly with mouth closure. On the standing position, similar head movements and body motions were also observed in the same rhythm with mandibular movements.The body movement in the standing position was also synchronized with the mandibular movement, and was observed as antero-posterior drifts of small amplitude within the large amplitude of antero-posterior drifts, which seemed to be the effects of breathing. On the other hand, the effects of breathing were not observed in the seating position. The distance of antero-posterior body movements, synchronized with mandibular movement, showed a tendency to increase with the increment of range of mouth opening, both in the standing and seating positions. However, the absolute values were differed among the subjects. The average ratio of the body movements to the range of mouth opening was 2.3〜6.1% in the standing position and 2.0〜4.8% in the seating position. The ratio was increased from 0.2〜1.3% in the standing position in comparison with the seating position. Less

本研究的目的是从站立位和坐位的身体运动的角度来评估口颌功能和全身状况之间的关系。我们设计并研制了一种新型的六自由度跟踪装置（TRIMET□），并将其用于头部和下颌运动的三维配准。还使用两个放置在天花板上的运动捕捉设备（ProReflex）测量身体运动。此外，我们建立了一个新的系统，同时分析这三种数据在同一时间轴上。对于下颌运动，在上颌骨参考框架上记录下切点。对于头部运动，在地面参考系上记录上切点、顶骨点、枕骨点和髁突点。同时，在地面坐标系上记录并分析了胸骨点的运动。受试者为6名男性，年龄25 ~ 29岁，口颌功能正常 ...更多信息坐位张口时头伸，闭口时头屈。与这些头部运动同步，身体随着嘴的张开向前移动，随着嘴的闭合向后移动。在站立位，也观察到类似的头部运动和身体运动，与下颌运动的节奏相同，站立位的身体运动也与下颌运动同步，并且观察到在大幅度的前后漂移中的小幅度的前后漂移，这似乎是呼吸的影响。另一方面，在就座位置上没有观察到呼吸的影响。无论是站立位还是坐位，与下颌运动同步的身体前后运动的距离都随着张口度的增加而增加。然而，受试者之间的绝对值不同。站立位身体动作与张口幅度的平均比例为2.3〜6.1%，就座位为2.0〜4.8%。与坐姿相比，站立位的比例从0.2增加到1.3%。少