发育正常和患有唐氏综合征的学步儿步幅变异性的变化。
Changes in step variability of new walkers with typical development and with Down syndrome.
作者信息
Looper Julia, Wu Jianhua, Angulo Barroso Rosa, Ulrich Dale, Ulrich Beverly D
机构信息
Division of Kinesiology, University of Michigan, 401 Washtenaw Avenue, Ann Arbor, MI 48109, USA.
出版信息
J Mot Behav. 2006 Sep;38(5):367-72. doi: 10.3200/JMBR.38.5.367-372.
Abstract
Models of human gait are based on adult locomotion. C. E. Bauby and A. D. Kuo (2000) proposed that adults rely on passive mechanisms at the spinal level to control motion in the anteroposterior direction and rely on direct monitoring of postural control in the lateral direction. The authors' purpose in this study was to determine if that model applies to control at the onset of walking in typically developing toddlers (n = 9) and in toddlers with Down syndrome (n = 6). Their longitudinal data suggested that toddlers control gait in a distinctly different manner than adults do. An adult pattern of control emerges with experience. In addition, the effect of experience on the emergence of that pattern is magnified by task-specific early intervention. The present data support the emergence and discovery of efficient patterns of control in this fundamental human behavior.
摘要
人类步态模型基于成人的行走方式。C. E. 鲍比和A. D. 郭（2000年）提出，成人依靠脊髓水平的被动机制来控制前后方向的运动，并依靠对侧向姿势控制的直接监测。作者在本研究中的目的是确定该模型是否适用于典型发育幼儿（n = 9）和唐氏综合征幼儿（n = 6）开始行走时的控制。他们的纵向数据表明，幼儿控制步态的方式与成人明显不同。随着经验的积累，成人的控制模式会出现。此外，特定任务的早期干预会放大经验对该模式出现的影响。目前的数据支持在这种基本人类行为中出现和发现有效的控制模式。
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