Effects of train noise and vibration on human heart rate during sleep: an experimental study.
Effects of train noise and vibration on human heart rate during sleep: an experimental study.
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DOI：
10.1136/bmjopen-2013-002655
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发表时间：
2013-05-28
期刊：
影响因子：
2.9
通讯作者：
Waye KP
中科院分区：
文献类型：
--
作者：
Croy I;Smith MG;Waye KP
铁路上的货物运输正在增加，大多数增加的货运列车在夜间运行。交通噪音对睡眠结构有不利影响，影响睡眠期间的心率（HR），并可能与心血管疾病有关。货运列车也会产生振动，但人们对振动对人类睡眠的影响知之甚少。进行了一项实验室研究，以研究现实的夜间铁路交通场景如何影响睡眠期间的HR。病例对照健康的参与者24名健康志愿者（11名男性，13名女性，19-28岁）在睡眠实验室连续度过了六个晚上。 所有参与者在一个习惯的夜晚，一个控制和四个实验的夜晚，火车噪音和振动再现。在试验中，20或36列列车具有低振动或高振动特性。记录多导睡眠图数据和ECG。列车暴露导致暴露开始1分钟内HR的显着变化（p=0.002），其特征在于HR的初始和延迟增加。在79%的参与者中，高振动条件引起每列列车平均增加至少3 bpm。 心脏反应在高振动条件下一般高于低振动条件下（p=0.006）。噪声敏感性和性别没有显着影响，虽然有一种趋势，男性表现出更强的HR加速比女性。货运列车在睡眠期间引起HR加速度，并且列车的振动特性特别重要。从长远来看，这可能会影响居住在铁路附近的人的心血管功能。
Transportation of goods on railways is increasing and the majority of the increased numbers of freight trains run during the night. Transportation noise has adverse effects on sleep structure, affects the heart rate (HR) during sleep and may be linked to cardiovascular disease. Freight trains also generate vibration and little is known regarding the impact of vibration on human sleep. A laboratory study was conducted to examine how a realistic nocturnal railway traffic scenario influences HR during sleep. Case–control. Healthy participants. 24 healthy volunteers (11 men, 13 women, 19–28 years) spent six consecutive nights in the sleep laboratory. All participants slept during one habituation night, one control and four experimental nights in which train noise and vibration were reproduced. In the experimental nights, 20 or 36 trains with low-vibration or high-vibration characteristics were presented. Polysomnographical data and ECG were recorded. The train exposure led to a significant change of HR within 1 min of exposure onset (p=0.002), characterised by an initial and a delayed increase of HR. The high-vibration condition provoked an average increase of at least 3 bpm per train in 79% of the participants. Cardiac responses were in general higher in the high-vibration condition than in the low-vibration condition (p=0.006). No significant effect of noise sensitivity and gender was revealed, although there was a tendency for men to exhibit stronger HR acceleration than women. Freight trains provoke HR accelerations during sleep, and the vibration characteristics of the trains are of special importance. In the long term, this may affect cardiovascular functioning of persons living close to railways.
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