Chupakhina V L, Meĭgal A Iu, Lupandin Iu V
Fiziol Zh SSSR Im I M Sechenova. 1990 Mar;76(3):406-13.
Comparative neurophysiological analysis of the motor units (MU) activity during hypothermia performed in ground-squirrels and rats, revealed a tendency of the MU firing rate to decrease whereas electromyographical patterns of thermoregulatory activity were found to be common both for hibernating and non-hibernating animals. The MU activity ceased in rats at their body temperature of 20-22 degrees C in contrast to 9-5 degrees C in ground-squirrels. Differences in thermoregulatory muscle tone distribution over muscle groups were found between those two species. Some mechanisms of neural regulation of cold shivering and of thermoregulatory muscle tone, are discussed.
对黄鼠和大鼠在体温过低期间运动单位（MU）活动进行的比较神经生理学分析表明，MU放电频率有下降趋势，而体温调节活动的肌电图模式在冬眠和非冬眠动物中是常见的。与黄鼠体温9 - 5摄氏度时MU活动停止不同，大鼠在体温20 - 22摄氏度时MU活动停止。发现这两个物种在体温调节肌张力在肌肉群中的分布存在差异。本文讨论了寒冷颤抖和体温调节肌张力的神经调节的一些机制。
