Graham C, Sastre A, Cook M R, Kavet R
Midwest Research Institute, Kansas City, MO 64110, USA.
Bioelectromagnetics. 2000 Sep;21(6):480-2.
In previous research, intermittent exposure to sinusoidal 60 Hz magnetic fields at a resultant flux density of 28.3 microT was found to alter heart rate variability (HRV) in men during night sleep. When the 24 men in the present study were exposed under similar conditions, HRV was not altered. The previous studies included the hourly collection of blood samples via an indwelling venous catheter, while the present study did not. This may account for the observed differences in results. Further research is needed to determine if field exposure interacts with physiological arousal mechanisms to alter autonomic nervous system control over cardiac rhythms.
在先前的研究中，发现男性在夜间睡眠期间，以28.3微特斯拉的合成磁通密度间歇性暴露于60赫兹正弦磁场会改变心率变异性（HRV）。当本研究中的24名男性在类似条件下暴露时，HRV并未改变。先前的研究包括通过留置静脉导管每小时采集血样，而本研究未进行此项操作。这可能解释了观察到的结果差异。需要进一步研究以确定磁场暴露是否与生理唤醒机制相互作用，从而改变自主神经系统对心律的控制。
