COORDINATING MOVEMENT AMONG MUSCLES AND JOINTS

协调肌肉和关节之间的运动

• 批准号: 2712471
• 负责人: GERALD L GOTTLIEB
• 金额: $ 16.67万
• 依托单位: BOSTON UNIVERSITY MEDICAL CAMPUS
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-01 至 2001-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2712471
• 关键词: arm; biological models; central nervous system; elbow; electromyography; hand; human subject; joints; leg; limb movement; mathematical model; model design /development; muscle function; neuroregulation; psychomotor function; statistics /biometry; wrist

DESCRIPTION (Adapted from the Applicant's Abstract): A simple model is proposed to explain how the central nervous system (CNS) coordinates the muscles at two or more joints of a single limb, when making a voluntary pointing movement. This model has three elements: a general principle for inter-joint torque coordination, and two movement-specific rules. One rule determines the signs and magnitudes of the individual joint torques, while a second specifies the joint torque patterns. From these torques, the muscles which act as agonists and antagonists can be identified, and their patterns of activation can be approximately specified. The model also identifies regions where this agonist/antagonist pattern breaks down. The aim of the proposed study is to test the validity of this model, in the context of two-joint arm pointing movements, and to test the limits of the model's generalizability by applying it to other limbs, to more joints, and to other classes of movements. It is suggested by the applicant that this model offers a concrete, physically meaningful approach to what "coordination" is and how a lack of coordination might be measured.

描述(改编自申请人摘要)：一个简单的模型是 提出解释中枢神经系统(CNS)如何协调 单肢的两个或多个关节的肌肉，当进行自愿的 指向运动。该模型有三个要素：一般原则 关节间扭矩协调，以及两个特定动作的规则。一条规则 确定各个关节扭矩的符号和大小，而 第二个指定关节扭矩模式。从这些扭矩来看，肌肉 可以确定哪些是激动剂，哪些是拮抗剂，以及它们的模式 可以大致指定激活的时间。该模型还确定了 这种激动剂/拮抗剂模式被打破的区域。该计划的目的是 建议的研究是在以下背景下测试该模型的有效性 双关节手臂指向运动，并测试模型的极限 通过将其应用于其他肢体、更多关节和其他 动作的类别。申请人建议这一模式 提供了一种具体的、在物理上有意义的方法来解释“协调”是什么 以及如何衡量缺乏协调。