通过碰撞法测定的最大和最小运动神经传导速度：与类型鉴定的运动单位轴突传导速度的相关性。
Maximal and minimal motor nerve conduction velocities determined by a collision method: correlation with axonal conduction velocity of type-identified motor units.
作者信息
Arasaki K
机构信息
Department of Neurology, University of Tsukuba, Japan.
出版信息
J Neurol Sci. 1992 Jul;110(1-2):131-8. doi: 10.1016/0022-510x(92)90019-h.
Maximal and minimal motor nerve conduction velocities of the medial gastrocnemius (MG) muscle nerve were measured by a new collision method in 20 rats of 8-9 weeks of age; the rate of tension increase produced by the muscle was also recorded. Single motor unit analysis in the other 20 rats obtained axonal conduction velocity and contractile properties of type-identified MG motor units. Comparison of the data from these experiments revealed that the maximal and minimal motor nerve conduction velocities obtained by this collision method were most likely to be the axonal conduction velocity of fast-twitch and slow-twitch motor units, respectively. Therefore, these motor nerve conduction velocities in man may also be used as functional parameters of human fast-twitch and slow-twitch motor units, respectively.
采用一种新的碰撞法，对20只8-9周龄大鼠的腓肠肌内侧（MG）肌肉神经的最大和最小运动神经传导速度进行了测量；同时还记录了肌肉产生的张力增加率。对另外20只大鼠进行单运动单位分析，获得了经类型鉴定的MG运动单位的轴突传导速度和收缩特性。这些实验数据的比较表明，通过这种碰撞法获得的最大和最小运动神经传导速度最有可能分别是快肌和慢肌运动单位的轴突传导速度。因此，人类的这些运动神经传导速度也可分别用作人类快肌和慢肌运动单位的功能参数。
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