3-D DYNAMIC MOTION SEGMENT BEHAVIOR

3-D 动态运动段行为

• 批准号: 6660389
• 负责人: MARTIN H KRAG
• 金额: $ 24.82万
• 依托单位: UNIVERSITY OF VERMONT & ST AGRIC COLLEGE
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-22 至 2005-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6660389
• 关键词: backache; biomechanics; clinical research; electromyography; human subject; implant; medical implant science; microelectrodes; muscle function; musculoskeletal disorder; neuromuscular disorder; statistics /biometry; vertebrae

DESCRIPTION: (adapted from Investigator's abstract) Mechanical dysfunction of the low back is widely considered to be an important component of the large problem of idiopathic low back pain (LBP) and to involve abnormalities of vertebral motion (motion segment kinematics) and vertebral muscle use and/or morphology. Much has been learned concerning the end-points of the range of spinal motion but there is still limited understanding and treatment of these kinematic and muscle abnormalities. Recent investigations of these topics by the applicants and others have shown that: (1) the details of the motion between pairs of vertebrae are very finely controlled and repeatable in normal subjects (2) the expected linkage between abnormal motion and abnormal local muscle activity appears to be present, and (3) localized muscle morphometric changes occur in a number of cases of idiopathic LBP. Building on these studies, the proposed work has as its specific aims: 1) for each of the lumbar motion segments, to measure kinematic, EMG, and muscle size parameters during various range of motion and lifting tasks in normal subjects and in idiopathic LBP subjects that are considered likely to have abnormalities detectable by these measurements; 2) to test for correlation of these measurements with those of clinically available parameters; and 3) to test whether subjects can voluntarily alter their motion segment kinematic or EMG behaviors during task performance.

描述：（改编自研究者的摘要）机械功能障碍 腰背被广泛认为是大尺寸的重要组成部分 特发性腰痛（LBP）问题并涉及异常 椎体运动（运动节段运动学）和椎体肌肉的使用和/或 形态学。关于范围的终点已经了解了很多 脊柱运动，但对这些运动的理解和治疗仍然有限 运动和肌肉异常。 申请人和其他人最近对这些主题的调查表明 (1) 成对椎骨之间的运动细节非常精细 在正常受试者中受控且可重复 (2) 之间的预期联系 似乎存在异常运动和异常局部肌肉活动，并且 (3) 在许多情况下会出现局部肌肉形态变化 特发性腰痛。 基于这些研究，拟议工作的具体目标是：1） 每个腰部运动节段，用于测量运动学、肌电图和肌肉尺寸 正常受试者各种运动范围和举重任务期间的参数 以及被认为可能存在异常的特发性腰痛受试者 通过这些测量可检测到； 2）测试这些之间的相关性 使用临床可用参数进行测量； 3）测试 受试者是否可以自愿改变其运动片段运动学或肌电图 任务执行过程中的行为。