Vorro J, Johnston W L, Hubbard R P
Department of Anatomy, Michigan State University College of Osteopathic Medicine, East Lansing.
J Am Osteopath Assoc. 1991 Feb;91(2):145-6, 149-55.
Parts I and II of this study compared kinematic and myoelectric data for two groups of asymptomatic subjects classified as having symmetric or asymmetric motor response to a palpatory test for cervical sidebending. Kinematic data revealed that asymmetric subjects had limited mobility for primary and secondary motions. Myoelectric activity was slow to be initiated in the asymmetric subjects, and reduced in time and strength of contraction. Part III addresses additional specific kinematic data concerning three-dimensional orientations of the head; however, these data were accumulated throughout the paths of movement, not just at their end points as in our previous work. Although asymmetric subjects had demonstrated significantly reduced range of motion, paths of the more minor secondary axes did not differ significantly between groups. As with previous data (Part I and II), active and passive movements were undifferentiated; this degree of likeness in even minor aspects of the motor performance continues to indicate the remarkable similarities that can exist between primary movements directed and guided by trained physicians and those actively controlled by patients themselves. Part III completes a study of cervical motor behavior in which a passive gross motion test distinguished an asymmetric group with subclinical motor behavior that has measurable kinematic and myoelectric correlates.
本研究的第一部分和第二部分比较了两组无症状受试者的运动学和肌电数据，这两组受试者根据对颈椎侧屈触诊试验的运动反应被分类为对称或不对称。运动学数据显示，不对称组受试者的主、次运动活动度受限。不对称组受试者的肌电活动启动缓慢，收缩时间和强度降低。第三部分阐述了有关头部三维方向的其他特定运动学数据；然而，这些数据是在整个运动路径上积累的，而不像我们之前的研究那样仅在运动终点采集。尽管不对称组受试者的运动范围显著减小，但两组之间较小次要轴的路径差异并不显著。与之前的数据（第一部分和第二部分）一样，主动和被动运动没有区别；运动表现即使在细微方面的这种相似程度继续表明，由训练有素的医生指导的主运动与患者自身主动控制的主运动之间可能存在显著相似之处。第三部分完成了一项关于颈椎运动行为的研究，其中一项被动总体运动测试区分出了一组具有亚临床运动行为的不对称受试者，这种行为具有可测量的运动学和肌电相关性。
