神经传导速度与皮肤温度之间的非线性关系。
The non-linear relationship between nerve conduction velocity and skin temperature.
作者信息
Todnem K, Knudsen G, Riise T, Nyland H, Aarli J A
机构信息
Department of Neurology, Haukeland Hospital, University of Bergen, Norway.
出版信息
J Neurol Neurosurg Psychiatry. 1989 Apr;52(4):497-501. doi: 10.1136/jnnp.52.4.497.
Median motor and sensory nerves were examined in 20 healthy subjects. Superficial stimulating and recording electrodes were used, and the nerves were examined at natural skin temperature, after cooling and after heating of the arm. The conduction velocity for the fastest and slow conducting sensory fibres (temperature range 17-37 degrees C), and for the fastest conducting motor fibres (temperature range 19-38 degrees C) increased non-linearly with increase in skin temperature. Similarly, distal motor latencies increased non-linearly with decrease in skin temperature. The effect of temperature was most pronounced in the low temperature range, and change in conduction velocity per degree centigrade was reduced toward higher skin temperature. Sensory nerve response duration increased linearly with decline in skin temperature. Sensory and motor amplitude did not show any significant relation to skin temperature.
对20名健康受试者的正中运动神经和感觉神经进行了检查。使用表面刺激和记录电极，在自然皮肤温度下、手臂冷却后和加热后对神经进行检查。最快和最慢传导感觉纤维（温度范围17 - 37摄氏度）以及最快传导运动纤维（温度范围19 - 38摄氏度）的传导速度随皮肤温度升高呈非线性增加。同样，远端运动潜伏期随皮肤温度降低呈非线性增加。温度效应在低温范围内最为明显，每摄氏度的传导速度变化在皮肤温度较高时减小。感觉神经反应持续时间随皮肤温度下降呈线性增加。感觉和运动幅度与皮肤温度未显示出任何显著关系。
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