...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Medicine and science in sports and exercise >Reliability of motor-evoked potentials during resting and active contraction conditions.
【24h】

Reliability of motor-evoked potentials during resting and active contraction conditions.

机译：静息和主动收缩条件下运动诱发电位的可靠性。

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

PURPOSE: To determine the reliability of motor-evoked potentials (MEP) obtained using transcranial magnetic stimulation (TMS) in the first dorsal interosseous (FDI) and biceps brachii muscles. METHODS: Fourteen college subjects attended the laboratory on three separate days. TMS was used to obtain MEP with the subject relaxed (resting condition) at stimulation intensities of 70%, 85%, and 100% of maximal stimulator output. MEP were also obtained during four active contraction conditions involving contractions of 25%, 50%, 75%, and 100% of maximal effort (MVC). Reliability was measured using an intraclass correlation analysis of variance (ANOVA) design. RESULTS: In the resting condition, substantial increases in MEP amplitude were observed for both muscles from day 1 to day 2. Intraclass reliability estimates were higher for the biceps muscle (ICC = 0.95-0.99) than for the FDI muscle (ICC = 0.60-0.81). During the active conditions, the greatest MEP were observed at 25% and 50% MVC, with smaller MEP at 75% and 100% MVC. Intraclass correlations in the active condition were approximately 0.63-0.73. CONCLUSIONS:: Moderate to good reliability of MEP amplitude in the biceps and FDI muscles can be obtained using TMS in both resting and active contraction conditions.
机译：目的：确定使用经颅磁刺激（TMS）在第一背骨间（FDI）和肱二头肌中获得的运动诱发电位（MEP）的可靠性。方法：十四名大学受试者分别在三天内参加了实验室。使用TMS来获得MEP，使受试者在最大刺激物输出的70％，85％和100％的刺激强度下放松（静止状态）。在四个主动收缩条件下也获得了MEP，这些收缩条件分别为最大努力（MVC）的25％，50％，75％和100％。使用组内相关方差分析（ANOVA）设计来测量可靠性。结果：在休息状态下，从第1天到第2天，两块肌肉的MEP幅度均显着增加。二头肌的组内可靠性估计值（ICC = 0.95-0.99）高于FDI肌肉（ICC = 0.60- 0.81）。在活跃状态下，在25％和50％MVC时观察到最大的MEP，而在75％和100％MVC时观察到较小的MEP。活跃状态下的类内相关性约为0.63-0.73。结论：在静止和主动收缩条件下，使用TMS均可获得肱二头肌和FDI肌肉中MEP振幅的中等至良好的可靠性。

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