COORDINATING MOVEMENT AMONG MUSCLES AND JOINTS

协调肌肉和关节之间的运动

• 批准号: 2006825
• 负责人: GERALD L GOTTLIEB
• 金额: $ 17.12万
• 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/2006825
• 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（改编自申请人的摘要）： 建议解释中枢神经系统（CNS）如何协调 在一个单一的肢体的两个或两个以上的关节肌肉，当作出自愿 指向运动。 这一模式有三个要素： 关节间扭矩协调和两个运动特定规则。 一个规则 确定单个关节扭矩的符号和大小，而 第二个指定关节扭矩模式。 从这些扭矩中，肌肉 其作为激动剂和拮抗剂起作用， 可以近似地指定激活。 该模型还确定了 这种激动剂/拮抗剂模式被破坏的区域。 的目的 拟议的研究是为了测试这个模型的有效性，在背景下， 两个关节的手臂指向运动，并测试模型的极限 通过将其应用于其他肢体，更多关节，以及其他 类的运动。 申请人建议，该模型 提供了一个具体的，实际上有意义的方法，什么是“协调” 以及如何衡量缺乏协调的问题。