Relationship Between Cervical, Thoracic, and Lumbar Spinal Alignments in Automotive Seated Posture
Relationship Between Cervical, Thoracic, and Lumbar Spinal Alignments in Automotive Seated Posture
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汽车坐姿中颈椎、胸椎和腰椎排列之间的关系
DOI：
10.1115/1.4045111
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Svensson Mats Y.
中科院分区：
文献类型：
--
作者：
Sato Fusako;Miyazaki Yusuke;Morikawa Shigehiro;Perez Antonio Ferreiro;Schick Sylvia;Yamazaki Kunio;Brolin Karin;Svensson Mats Y.
本研究的目的是调查在一个汽车乘员坐姿颈椎，胸椎和腰椎的关系。本研究重新分析了先前通过直立开放式磁共振成像（MRI）系统采集的汽车坐姿脊柱图像数据集。通过从图像数据中提取椎体的几何中心来表示脊柱的对齐。颈椎、胸椎和腰椎的脊柱对线分别用多维标度（MDS）进行分析。基于MDS创建的颈椎、胸椎和腰椎脊柱对线的分布图，研究了颈椎、胸椎和腰椎脊柱的代表性脊柱对线模式以及颈椎、胸椎和腰椎脊柱对线之间的关系。因此，本研究发现了汽车乘员坐姿中颈椎和胸椎对齐之间的相关性。根据脊柱对线分布图所示的代表性脊柱对线模式，颈椎后凸对线的受试者胸椎后凸对线较少，而颈椎前凸对线的受试者胸椎后凸对线较多。对于腰椎对线，在本研究的坐位条件下，未发现颈椎和胸椎对线之间存在显著关系。
The purpose of this study was to investigate the relationship between cervical, thoracic, and lumbar spinal alignments in one automotive occupant seated posture. An image dataset of the spinal column in the automotive seated posture, previously acquired by an upright open magnetic resonance imaging (MRI) system, was re-analyzed in this study. Spinal alignments were presented by the geometrical centers of the vertebral bodies extracted from the image data. Cervical, thoracic, and lumbar spinal alignments were analyzed separately with multidimensional scaling (MDS). Based on distribution maps of cervical, thoracic, and lumbar spinal alignments created by MDS, representative spinal alignment patterns of the cervical, thoracic, and lumbar spines and the relationship between cervical, thoracic, and lumbar spinal alignments were investigated. As a result, this study found a correlation between cervical and thoracic spinal alignments in an automotive occupant seated posture. According to representative spinal alignment patterns illustrated by the distribution map of spinal alignments, subjects who had kyphotic cervical spinal alignment tended to have less kyphotic thoracic spinal alignment, while subjects who had lordotic cervical spinal alignment tended to have more kyphotic thoracic spinal alignment. For lumbar spinal alignments, no prominent relationship was found between cervical and thoracic spinal alignment in the seated condition of this study.