MOTOR-NERVE CONDUCTION-VELOCITY DISTRIBUTIONS IN MAN - RESULTS OF A NEW COMPUTER-BASED COLLISION TECHNIQUE
MOTOR-NERVE CONDUCTION-VELOCITY DISTRIBUTIONS IN MAN - RESULTS OF A NEW COMPUTER-BASED COLLISION TECHNIQUE
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DOI：
10.1016/0013-4694(87)90072-1
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发表时间：
1987-03-01
期刊：
影响因子：
--
通讯作者：
SWASH, M
中科院分区：
文献类型：
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作者：
INGRAM, DA;DAVIS, GR;SWASH, M
描述了一种新的基于计算机的碰撞技术，用于直接测量人体运动神经传导速度分布。与以前的碰撞技术相比，使用近端和远端刺激的安排，测试肌肉反应逐渐取消到零，从而消除了由神经和肌肉纤维传导的短暂变化引起的测试反应的扭曲。这项新技术提高了灵敏度，可以精确测量最慢的1%的运动神经纤维。我们使用改进的碰撞技术测定了20名年龄在19 - 59岁（平均35岁）的正常受试者的正中神经运动神经传导速度分布。使用150%的最大刺激强度，控制肢体温度为35度。C.组平均速度(.+-。最快（95%），平均（50%）和最慢（5%和1%）的运动纤维为59.1 +-。3.0, 56.9 .+-。2.9, 52.7 .+-。3.1和51.2 .+-。分别为3.7 m/s。尺神经和腓神经的数据也被提出。
A new computer-based collision technique for direct measurement of the human motor nerve conduction velocity distribution is described. In contrast to previous collision techniques, the test muscle response is progressively cancelled to a null using an arrangement of proximal and distal stimuli which eliminates distortion of the test response caused by transient changes in nerve and muscle fibre conduction. The increased sensitivity of this new technique permits accurate measurement of the slowest 1% of alpha motor nerve fibres. We have used our modified collision technique to determine motor nerve conduction velocity distributions for the median nerve in 20 normal subjects aged between 19 ad 59 (mean 35) years. 150% maximal stimulus intensities were used, with a controlled limb temperature of 35.degree. C. Group mean velocities (.+-. S.D.) for the fastest (95%), mean (50%) and slowest (5% and 1%) motor fibres were 59.1 .+-. 3.0, 56.9 .+-. 2.9, 52.7 .+-. 3.1 and 51.2 .+-. 3.7 m/sec respectively. Data are also presented for the ulnar and peroneal nerves.