...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Clinical neurophysiology >Involuntary paretic wrist/finger flexion forces and EMG increase with shoulder abduction load in individuals with chronic stroke
【24h】

Involuntary paretic wrist/finger flexion forces and EMG increase with shoulder abduction load in individuals with chronic stroke

机译：慢性脑卒中患者的肩部外展负荷导致非自愿的手腕/手指屈曲力和肌电图增加

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Objective: Clinical observations of the flexion synergy in individuals with chronic hemiparetic stroke describe coupling of shoulder, elbow, wrist, and finger joints. Yet, experimental quantification of the synergy within a shoulder abduction (SABD) loading paradigm has focused only on shoulder and elbow joints. The paretic wrist and fingers have typically been studied in isolation. Therefore, this study quantified involuntary behavior of paretic wrist and fingers during concurrent activation of shoulder and elbow. Methods: Eight individuals with chronic moderate-to-severe hemiparesis and four controls participated. Isometric wrist/finger and thumb flexion forces and wrist/finger flexor and extensor electromyograms (EMG) were measured at two positions when lifting the arm: in front of the torso and at maximal reaching distance. The task was completed in the ACT 3D robotic device with six SABD loads by paretic, non-paretic, and control limbs. Results: Considerable forces and EMG were generated during lifting of the paretic arm only, and they progressively increased with SABD load. Additionally, the forces were greater at the maximal reach position than at the position front of the torso. Conclusions: Flexion of paretic wrist and fingers is involuntarily coupled with certain shoulder and elbow movements. Significance: Activation of the proximal upper limb must be considered when seeking to understand, rehabilitate, or develop devices to assist the paretic hand.
机译：目的：慢性偏中风患者屈曲协同作用的临床观察描述了肩，肘，腕和手指关节的耦合。然而，对肩外展（SABD）负荷范式内协同作用的实验量化仅集中于肩关节和肘关节。通常对孤立的手腕和手指进行研究。因此，本研究量化了肩部和肘部同时激活期间paretic手腕和手指的非自愿行为。方法：八名慢性中度至重度偏瘫患者和四名对照者参加。在抬起手臂时，在两个位置（在躯干前和最大到达距离）测量了等距腕/手指和拇指的弯曲力以及腕/手指的屈肌和伸肌肌电图（EMG）。该任务是在ACT 3D机器人设备中完成的，分别由模拟，非模拟和控制肢体施加六个SABD负载。结果：相当大的力和肌电图仅在举起假臂时产生，并且随着SABD载荷而逐渐增加。另外，在最大到达位置处的力大于在躯干前部位置处的力。结论：手腕弯曲和手指弯曲不自觉地伴有一定的肩膀和肘部运动。启示：在试图理解，修复或发展有助于手部瘫痪的装置时，必须考虑近端上肢的激活。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号