首页> 外文会议>Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE >A correlation technique for muscle fibre action potential conduction velocity measurement using a single acquisition channel
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A correlation technique for muscle fibre action potential conduction velocity measurement using a single acquisition channel

机译:使用单个采集通道测量肌肉纤维动作电位传导速度的相关技术

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Muscle fibre conduction velocity is an important parameter in electrophysiology and also for patient rehabilitation. Its measurement is usually made by placing electrodes spaced at known distances and, somehow, estimating the action potential conduction time. The problem, common to all methods, is how to as accurately as possible estimate the latter, i.e., the time delay. Several procedures have been proposed, both in the time and frequency domains. Time domain strategies usually require two acquisition channels, while frequency-domain based methods use a single one. The method described herein operates in the time domain, producing a conduction delay estimate by means of the autocorrelation of the signal obtained from a single acquisition channel. As with other time domain methods, it does not require long records. Experimental results are shown using the spontaneous electric activity of the muscle under contraction. It yields satisfactory results even with records as short as 0.2 s.
机译:肌纤维传导速度是电生理学和患者康复的重要参数。它的测量通常是通过以已知距离放置电极,并以某种方式估算动作电位的传导时间来进行的。所有方法共有的问题是如何尽可能准确地估计后者,即时间延迟。已经提出了时域和频域中的几种程序。时域策略通常需要两个采集通道,而基于频域的方法则使用单个通道。本文描述的方法在时域中操作,借助于从单个采集通道获得的信号的自相关来产生传导延迟估计。与其他时域方法一样,它不需要很长的记录。使用收缩下肌肉的自发电活动显示实验结果。即使记录时间短至0.2 s,也能获得令人满意的结果。

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