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相关概念视频

Indirect Motor Pathways01:22

Indirect Motor Pathways

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The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
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Hierarchy of Motor Control01:18

Hierarchy of Motor Control

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The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
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相关实验视频

Updated: Jun 26, 2025

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
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Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings

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在步行终止和掌握过程中进行姿势控制.

Hwigeum Jeong1, Natalie Cabiles1, Richard E A van Emmerik1

  • 1Motor Control Laboratory, Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA 01003, USA.

Gait & posture
|May 12, 2024
PubMed
概括

健康的年轻人通过手动任务在步行终止期间保持姿势控制. 他们通过调整上半身运动来适应,在不损害稳定性的情况下,在整合任务方面表现出灵活性.

科学领域:

  • 生物力学 生物力学
  • 人类运动科学科学 人类运动科学
  • 神经科学是一个神经科学.

背景情况:

  • 步行终止会给姿势稳定带来挑战,特别是当与对象操纵等次要任务相结合时.
  • 有限的研究存在于手动任务执行时的步行终止期间的姿势控制.

研究的目的:

  • 为了调查在行走结束时的姿势控制的变化,并没有同时进行抓住 (达到) 任务.

主要方法:

  • 15名健康的年轻人进行了单任务步行终止 (GTO) 和双任务步行终止与达到 (GTR).
  • 在准备和稳定阶段,使用压力中心 (CoP) 和胸骨位置 (AP / ML) 测量了姿势接触时间 (TtC).
  • 配对的t测试分析了GTO和GTR条件之间的TtC差异.

主要成果:

  • 在准备阶段,胸骨AP TtC在GTR (双任务) 与GTO (单任务) 相比较较短,而CoP TtC没有显示差异.
  • 在稳定阶段,在前后 (AP) 和中侧侧 (ML) 方向,GTR中的CoP和胸骨TtC都比GTO更长.

结论:

  • 健康的年轻人灵活地将上肢需求与步行终止和握手任务相结合,在准备阶段通过调整的胸骨TTC表示.
关键词:
支持的基础支持.压力中心的压力中心步道的终点是步道的终点.姿势控制 姿势控制预握力 预握力 预握力联系时间 - 联系时间.

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Experimental Methods to Study Human Postural Control
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相关实验视频

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  • 在步行结束时的握手任务没有减少后期阶段的整体姿势稳定,这表明有效的补偿策略.