...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Neurophysiology >Spasms after spinal cord injury show low-frequency intermuscular coherence
【24h】

Spasms after spinal cord injury show low-frequency intermuscular coherence

机译：脊髓损伤后的痉挛显示出低频的胚性相干性

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

Intermuscular coherence allows the investigation of common input to muscle groups. Although beta-band (15-30 Hz) intermuscular coherence is well understood as originating from the cortex, the source of intermuscular coherence at lower frequencies is still unclear. We used a wearable device that recorded electromyographic (EMG) signals during a 24-h period in four lower limb muscles of seven spinal cord injury patients (American Spinal Cord Injury Association impairment scale: A. 6 subjects; B. 1 subject) while they went about their normal daily life activities. We detected natural spasms occurring during these long-lasting recordings and calculated intermuscular coherence between all six possible combinations of muscle pairs. There was significant intermuscular coherence at low frequencies, between 2 and 13 Hz. The most likely source for this was the spinal cord and its peripheral feedback loops, because the spinal lesions in these patients had interrupted connections to supraspinal structures. This is the first report to demonstrate that the spinal cord is capable of producing low-frequency intermuscular coherence with severely reduced or abolished descending drive.
机译：渗流相干性允许调查肌肉群的常见输入。虽然β带（15-30Hz）渗出的相干性很好地理解为源于皮质，但较低频率下常见相干源仍不明确。我们使用可穿戴设备，可穿戴设备在七个脊髓损伤患者的四个下肢肌肉（美国脊髓损伤关联损害量表：A. 6受试者）中的四个下肢肌肉（EMG）信号期间记录了电拍照（EMG）信号。关于他们正常的日常生活活动。我们在这些长持久的录音期间检测到自然痉挛，并在所有六种可能的肌肉成对组合之间计算出的常见相干性。低频，2至13赫兹之间存在显着的间晶状态相干性。对于脊髓及其外周反馈回路，最可能的来源是脊髓，因为这些患者的脊柱病变被中断到袋脊柱结构。这是第一份证明脊髓能够产生低频间谐波的报告，其具有严重减少或废除的下降驱动。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 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