Hopf H C, Maurer K
Neurologische Universitätsklinik Mainz, FRG.
Muscle Nerve. 1990 Mar;13(3):259-62. doi: 10.1002/mus.880130314.
Changes at low temperatures of the electrical and mechanical activity of the adductor pollicis muscle were studied in 10 volunteers. Decreasing temperatures resulted in increased amplitude and duration of the negative phase and peak-to-peak amplitude of the evoked muscle action potential. Distal latency, electromechanical latency, contraction time, and half-relaxation time were also increased while isometric force, contraction velocity, and relaxation velocity were decreased. The increase of contraction time is greater over the temperature range below 28 degrees C than above 29 degrees C. Skin temperature differs significantly from muscle temperature, showing about 3 degrees C lower values during cooling and up to 4 degrees C higher values during rewarming with radiant heat.
对10名志愿者的拇收肌在低温下的电活动和机械活动变化进行了研究。温度降低导致诱发肌肉动作电位的负相振幅和持续时间以及峰峰值振幅增加。远端潜伏期、机电潜伏期、收缩时间和半松弛时间也增加，而异长力、收缩速度和松弛速度则降低。在28摄氏度以下的温度范围内，收缩时间的增加幅度大于29摄氏度以上的范围。皮肤温度与肌肉温度有显著差异，在冷却过程中显示出约低3摄氏度的值，在用辐射热复温过程中则高达高4摄氏度的值。
