准备阶段的时间性质,用于各种方向和距离的手臂指向动作
Soma Okuuchi1, Hirokazu Yamamoto2, Keisuke Tani3
1Graduate School of Human and Environmental Studies, Kyoto University, Japan.
Human movement science
|August 2, 2024
概括
移动计划时间因到达方向和距离而异. 人类在启动前和启动后调整运动时间,以管理运动控制困难,以达到预期的性能.
科学领域:
- 发动机控制器 发动机控制器
- 人类运动科学 人类运动科学
- 生物力学 生物力学
背景情况:
- 上肢运动的准备阶段涉及运动规划.
- 了解运动规划的时间性质对于人类运动研究至关重要.
- 伸手运动是复杂的,受到方向和距离的影响.
研究的目的:
- 调查如何达到方向和距离影响上肢运动的准备阶段的时间性质.
- 分析预测对运动规划和执行的影响.
- 探索运动方向,距离和运动控制成本之间的关系.
主要方法:
- 十二名右撇子参与者执行了伸手和举手指的任务.
- 任务包括在预备和不预备条件下移动到15个目标位置 (五个方向,三个距离).
- 记录了反应时间 (RT),运动时间 (MT) 和动力学;计算了差异性RT (DRT).
主要成果:
- 差异性RT (DRT) 显示出异构性,与向前和向右相比,向前和向左方向的时间成本更高.
- 移动时间 (MT) 在左向前方向最长.
- 从峰值速度到移动终止 (TFPV) 的时间在没有排队的情况下在左向前方向较长,这表明在线改进.
结论:
- 运动规划的时间成本取决于运动方向和距离.
- 运动执行在线精细化,特别是当运动规划不足时,特别是对于具有高时间成本的方向.
- 人类根据运动控制困难,在运动开始前和之后战略性地分配时间成本.
相关概念视频
Anatomical Movements
Anatomical movements refer to the various actions or motions that can be performed by the body's joints and muscles. These movements are described using specific terms to provide a standardized way of discussing and understanding the range of motion at different joints.
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist, metacarpophalangeal,...
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist, metacarpophalangeal,...
Muscle Coordination and Action
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.


