Absolute Coordination

在行走和跑步时，胳膊和腿像十字架一样移动， 产生规律的、可重复的时间间隔，就像时钟一样。 他们还 以相同的频率移动。 这项研究旨在进一步 理解这一绝对原则背后的一般原则， 摆动和时钟运动的协调。 实验 哪些人会摆动不同质量的手持健身器， 他们手腕的长度将与以下几种有关 问题：运动周期中能量是如何获得和损失的？ 这些收益和损失在四肢之间是如何联系的？ 如何 运动周期振幅与其持续时间有关？ 如何 优选的振幅随质量和长度的变化而变化？ 如何 许多肢体之间的相位关系是可能的， 是吗 绝对坐标在物理学中如何定义 条件？ 这些数据将通过各种正式的方法进行分析 非线性动力学 这些结果将有助于 节奏活动的形式模型。 他们最终应该是 可用于教授各种类型的有节奏的身体活动 同时也扩大了理解 节律性运动障碍

In walking and running, the arms and legs move like pendulums and produce regular, repeatable intervals, like clocks do. They also move at the same frequency. This research aims to further the understanding of the general principles behind this absolute coordination of pendular, clocking movements. Experiments in which people will swing hand-held pendulums of variable mass and length at their wrists will be concerned with the following kinds of issues: How is energy gained and lost by a movement cycle? How do these gains and losses relate across limbs? How does the amplitude of a movement cycle relate to its duration? How does preferred amplitude change with changes in mass and length? How many between-limb phase relations are possible, and how stable are they? How is absolute coordination to be defined in physical terms? The data will be analyzed through various formal methods of nonlinear dynamics. These results should facilitate the formal modeling of rhythmic activity. They should ultimately be useful in teaching various types of rhythmic physical activity and also in extending the basis for understanding the causes of rhythmic movement disorders.