Kantz J, Müller J, Hadeler K P, Landstorfer F M, Lang F
Institute of Radio Frequency Technology, University of Stuttgart, Germany.
Int J Environ Health Res. 2005 Jun;15(3):207-15. doi: 10.1080/09603120500105695.
A previous study failed to disclose an effect of short (15 min) exposure to low level energy microwaves (3 microW/cm2) emitted by a commercially available automobile radar system (77 GHz) for adaptive cruise control (ACC) on cardiovascular function. The present study explored whether a 15 min exposure to higher level energy microwaves of frequencies varying from 5.8 to 110 GHz influences cardiovascular function. To this end heart rate, skin temperature (thermocouple), skin conductance (Ag/AgCl electrodes), systolic and diastolic blood pressure (automatic cuff) were recorded in 50 test persons before, during and after a 15 min exposure to a sequential pattern of microwaves varying from 5.8 to 110 GHz (59.7 microW/cm2). After an equilibration period of 30 min the first group of test persons and after additional 30 min the second group of test persons were exposed. The study has been performed in a strict double blind design. While significant effects on the measured parameters were observed depending on time ("calming" effect), no significant difference was observed between exposure and sham exposure to microwaves. In view of the small scatter of the data the present study rules out physiologically relevant effects of moderate energy (59.7 microW/cm2) microwaves varying from 5.8 to 110 GHz on cardiovascular function.
先前的一项研究未能揭示，短时间（15分钟）暴露于市售汽车自适应巡航控制（ACC）雷达系统（77吉赫兹）发出的低水平能量微波（3微瓦/平方厘米）对心血管功能有影响。本研究探讨了15分钟暴露于频率范围从5.8至110吉赫兹的更高水平能量微波是否会影响心血管功能。为此，在50名测试对象暴露于频率从5.8至110吉赫兹（59.7微瓦/平方厘米）的连续微波模式之前、期间和之后，记录其心率、皮肤温度（热电偶）、皮肤电导（银/氯化银电极）、收缩压和舒张压（自动袖带）。在30分钟的平衡期后，第一组测试对象接受暴露，再过30分钟后，第二组测试对象接受暴露。该研究采用严格的双盲设计进行。虽然根据时间观察到对测量参数有显著影响（“平静”效应），但在微波暴露组和假暴露组之间未观察到显著差异。鉴于数据离散度较小，本研究排除了频率范围从5.8至110吉赫兹、能量适中（59.7微瓦/平方厘米）的微波对心血管功能产生生理相关影响的可能性。
