技术的比较,以确定活跃的电机值为经磁刺激研究的研究
Jonathan P Beausejour1, Jay Rusch2, Kevan S Knowles1
1Cognition, Neuroplasticity, and Sarcopenia Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, USA; School of Kinesiology and Rehabilitation Sciences, University of Central Florida, Orlando, FL, USA.
在跨磁刺激 (TMS) 研究中确定活跃运动值 (AMT) 可以使用绝对或相对电肌图 (EMG) 标准. 相对标准提供了更好的测试-重复测试可靠性,可以随着时间的推移跟踪皮质脊髓刺激性.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 电子生理学 电子生理学
背景情况:
- 活性运动值 (AMT) 的确定对于经磁刺激 (TMS) 研究至关重要.
- 当前的AMT协议经常使用绝对电肌图学 (EMG) 值,但参与者可变性需要探索相对值.
- 绝对和相对AMT标准之间缺乏系统的比较.
研究的目的:
- 为了比较来自四头肌绝对和相对EMG标准的AMT估计值.
- 评估绝对和相对AMT确定方法的测试-重新测试可靠性.
主要方法:
- 在两次实验室访问中,与18名年轻成年人一起使用了一种重复测量设计.
- 使用绝对 (例如200μV峰值到峰值) 和相对 (例如2x背景EMG) 标准在横向巨大的AMT被确定.
- 为了进行统计分析,使用了对型样本t测试和类内相关系数 (ICC2,1) .
主要成果:
- 绝对和相对AMT标准之间的差异在统计学上并不显著.
- 绝对标准显示可靠性中等至优异 (ICC2,1 = 0.866),但在第二次访问时,AMT的数量更高.
- 相对标准显示可靠性好至优异 (ICC2,1 = 0.894),在访问之间没有AMT的显著差异.
结论:
- 相对的AMT标准与绝对标准相比,具有更高的测试-重试可靠性,特别是在纵向研究中.
- 创视神经系统研究人员应考虑AMT确定的相对标准,以便在多次会议中可靠地跟踪皮质脊髓刺激性.
- 这一发现支持使用相对值来获得更一致和可靠的TMS研究结果.
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