Miyazaki M
Jpn Circ J. 1978 Sep;42(9):1019-24. doi: 10.1253/jcj.42.1019.
The circulatory effect of jet noise on heart rate, systolic blood pressure and cerebral blood flow was investigated by means of the on-line Doppler ultrasonic technique devised by the author in 20 normal young males, normal elderly males and elderly patients with cerebral vascular disease. The jet noise ranged from 60 dBA to 110 dBA. Heart rate and systolic blood pressure showed slight and transient increase at the level of over 90 dBA. Although the cerebral blood flow was increased at the level of 90--110 dBA, conspicuous dissociation was observed between the vertebral artery and internal carotid artery. The vertebral artery dominant type was more frequent than the internal carotid artery dominant type. Headache and discomfort due to the noise were observed in all the subjects. The above facts suggest that the jet noise induces dysfunction of the autonomic nervous system and various kinds of psychosomatic diseases.
采用作者设计的在线多普勒超声技术，对20名正常青年男性、正常老年男性和老年脑血管疾病患者，研究了喷气噪声对心率、收缩压和脑血流量的循环影响。喷气噪声范围为60分贝（A）至110分贝（A）。在90分贝（A）以上水平时，心率和收缩压出现轻微且短暂的升高。尽管在90 - 110分贝（A）水平时脑血流量增加，但椎动脉和颈内动脉之间观察到明显的分离。椎动脉优势型比颈内动脉优势型更为常见。所有受试者均出现因噪声引起的头痛和不适。上述事实表明，喷气噪声会诱发自主神经系统功能障碍和各种身心疾病。
