Suzuki Makoto, Fujisawa Hiroyuki, Suzuki Hiroto, Kawakami Shingo, Fukuda Mamoru, Murakami Kenichi
Department of Rehabilitation, Faculty of Medical Science and Welfare, Tohoku Bunka Gakuen University: 6-45-1 Kunimi, Aoba-ku, Sendai, Miyagi 981-8551, Japan.
Graduate School of Health and Environment Sciences, Tohoku Bunka Gakuen University, Japan.
J Phys Ther Sci. 2018 Aug;30(8):997-1002. doi: 10.1589/jpts.30.997. Epub 2018 Jul 24.
[Purpose] To describe the nature of multi-joint motor coordination during body rotation while in the standing position. [Participants and Methods] The participants were 22 healthy adults with no visual problems or history of diseases that could compromise their ability to execute body rotation. The position facing forward in an upright standing position was defined as 0°, and targets were placed at the following five points on concentric circles: 30°, 60°, 90°, 120°, and 150°. The participants always turned to the right. A three-dimensional motion analyzer consisting of six infrared cameras was used to measure the spatial coordinates of the infrared reflective markers. [Results] A main effect was found for all body segments. For all the target angles, the start of movement was approximately equal, and the angular change of the craniocervical joint was the largest. A nonlinear relationship was observed between the craniocervical and thoracolumbar joints for all target angles. However, a linear relationship was found between the thoracolumbar and pelvic joints. [Conclusion] The results of this study demonstrate that various regions such as the craniocervical and thoracolumbar junctions and the pelvis coordinate during such move to achieve optimal locomotive patterns.
[目的]描述站立位身体旋转过程中多关节运动协调的本质。[参与者与方法]参与者为22名无视觉问题且无可能影响其身体旋转能力的疾病史的健康成年人。直立站立位向前的方向定义为0°，目标放置在同心圆上的以下五个点：30°、60°、90°、120°和150°。参与者始终向右转。使用由六个红外摄像机组成的三维运动分析仪测量红外反射标记的空间坐标。[结果]在所有身体节段均发现主效应。对于所有目标角度，运动开始时间大致相等，颅颈关节的角度变化最大。在所有目标角度下，颅颈关节和胸腰椎关节之间观察到非线性关系。然而，胸腰椎关节和骨盆关节之间发现线性关系。[结论]本研究结果表明，在这种运动过程中，颅颈和胸腰交界处以及骨盆等不同区域相互协调，以实现最佳的运动模式。
