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本文作者研究了脉冲电磁场(PEMF)对心肺衰竭病人诱发的小鱼际肌肌电图变化的影响。用恒电流神经刺激器获得的200Hz超最大方波电流脉冲(0.2msec)在腕部刺激尺神经,然后病人暴露于PEMF(5mT,10Hz,20分钟),重复肌电图。本文作者测量了所引起的复合肌肉动作电位(CMAP)的变化,并将其作为肌电图初始和虽后CMAP之间幅度减少的百分比来表示。在有30名病人的对照组表明有20％的变化。在心肺衰竭病人中观察到60％或更大的变化。使用PEMF后,发
The authors studied the effects of pulsed electromagnetic fields (PEMFs) on the EMG changes in the small turbinate muscles induced by patients with cardiopulmonary failure. The ulnar nerve was stimulated at the wrist with a 200 Hz ultra-large square wave current pulse (0.2 msec) obtained with a galvanostatic neurostimulator, and the patient was then exposed to PEMF (5 mT, 10 Hz, 20 min) to repeat the electromyography. The authors measured changes in the resulting compound muscle action potential (CMAP) and expressed it as a percentage of the decrease in amplitude between the initial and the post-CMAP EMG. The control group with 30 patients showed a 20% change. A 60% or greater change was observed in cardiorespiratory failure patients. After using PEMF, send