双边的力量控制和协调模式跨越上肢和下肢
Tae Lee Lee1,2, Nyeonju Kang1,2
1Department of Human Movement Science, Incheon National University, Incheon, South Korea.
EXCLI journal
|November 12, 2025
概括
上肢和下肢在双边力量控制和协调方面显示出不同的模式. 虽然肢体之间的力量控制能力是相互关联的,但协调模式是不同的,这表明每个肢体对都有独特的运动控制过程.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 生物力学 生物力学
背景情况:
- 双边部队控制和协调对于日常活动至关重要.
- 不同的运动网络可能导致上肢和下肢之间不同的控制模式.
- 以前的研究并没有直接比较双边力量控制和上下肢之间的协调.
研究的目的:
- 调查健康成年人上肢和下肢双边力量控制和协调模式的差异.
- 为了比较力量控制性能 (对称性,准确性,可变性) 和手和脚之间的协调 (交叉相关性).
- 检查力量控制和协调在上肢和下肢之间之间的关系.
主要方法:
- 32名健康的年轻人在最大自愿收缩的10%和40%的速度执行了双边手握和脚背部屈曲任务.
- 双边力控制被评估使用平均力,对称性,精度和可变性.
- 通过与时间滞后交叉相关性测量双边力量协调,并使用皮尔森相关性分析关系.
主要成果:
- 与上肢相比,下肢的最大和平均双边力显著减少.
- 在更高的力量水平下,下肢的力量准确性和可变性低于上肢.
- 下肢表现出更多负相关系数值,表明与上肢相比,不同的协调模式.
结论:
- 双边运动控制和协调模式在上肢和下肢之间存在显著差异.
- 上肢和下肢之间的力量控制性能是相关的,但肢体间协调模式没有显著的相关性.
- 这些发现表明,虽然共享的过程可能会影响个体的运动控制能力,但在不同的四肢对中,不同的神经机制是双边控制和协调的基础.
更多相关视频
04:49Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes
Published on: September 6, 2024
1.4K
07:35Author Spotlight: Rehabilitation of Stroke Patients With a Digital Occupational Training System
Published on: December 29, 2023
1.9K
相关概念视频
01:18Hierarchy of Motor Control
5.9K
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.
5.9K
01:11Direct Motor Pathways
4.1K
The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
4.1K
01:24Muscle Coordination and Action
3.0K
Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....
3.0K
01:22Indirect Motor Pathways
3.0K
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...
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
3.0K