Micic Gorica, Zajamsek Branko, Lechat Bastien, Hansen Kristy, Scott Hannah, Toson Barbara, Liebich Tessa, Dunbar Claire, Nguyen Duc Phuc, Decup Felix, Vakulin Andrew, Lovato Nicole, Lack Leon, Hansen Colin, Bruck Dorothy, Chai-Coetzer Ching Li, Mercer Jeremy, Doolan Con, Catcheside Peter
Flinders University, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Australia.
Flinders University, College of Science and Engineering, Australia.
Sleep Adv. 2023 Sep 6;4(1):zpad033. doi: 10.1093/sleepadvances/zpad033. eCollection 2023.
Despite the global expansion of wind farms, effects of wind farm noise (WFN) on sleep remain poorly understood. This protocol details a randomized controlled trial designed to compare the sleep disruption characteristics of WFN versus road traffic noise (RTN).
This study was a prospective, seven night within-subjects randomized controlled in-laboratory polysomnography-based trial. Four groups of adults were recruited from; <10 km away from a wind farm, including those with, and another group without, noise-related complaints; an urban RTN exposed group; and a group from a quiet rural area. Following an acclimation night, participants were exposed, in random order, to two separate nights with 20-s or 3-min duration WFN and RTN noise samples reproduced at multiple sound pressure levels during established sleep. Four other nights tested for continuous WFN exposure during wake and/or sleep on sleep outcomes.
The primary analyses will assess changes in electroencephalography (EEG) assessed as micro-arousals (EEG shifts to faster frequencies lasting 3-15 s) and awakenings (>15 s events) from sleep by each noise type with acute (20-s) and more sustained (3-min) noise exposures. Secondary analyses will compare dose-response effects of sound pressure level and noise type on EEG K-complex probabilities and quantitative EEG measures, and cardiovascular activation responses. Group effects, self-reported noise sensitivity, and wake versus sleep noise exposure effects will also be examined.
This study will help to clarify if wind farm noise has different sleep disruption characteristics compared to road traffic noise.
尽管风电场在全球范围内不断扩张，但风电场噪声（WFN）对睡眠的影响仍知之甚少。本方案详细介绍了一项随机对照试验，旨在比较WFN与道路交通噪声（RTN）对睡眠干扰的特征。
本研究是一项前瞻性、基于实验室多导睡眠图的、为期七晚的受试者内随机对照试验。从距离风电场<10公里的人群中招募了四组成年人，包括有和没有与噪声相关投诉的人群；一个城市RTN暴露组；以及一个来自安静农村地区的组。在适应一晚后，参与者以随机顺序在既定睡眠期间暴露于两个单独的夜晚，分别接受时长为20秒或3分钟的WFN和RTN噪声样本，这些样本在多个声压级下重现。另外四个晚上测试在清醒和/或睡眠期间持续暴露于WFN对睡眠结果的影响。
主要分析将评估脑电图（EEG）的变化，通过每种噪声类型在急性（20秒）和更持续（3分钟）噪声暴露下，将其评估为微觉醒（EEG频率转变为更快频率持续3 - 15秒）和从睡眠中觉醒（>15秒事件）。次要分析将比较声压级和噪声类型对EEG K复合波概率和定量EEG测量以及心血管激活反应的剂量反应效应。还将检查组间效应、自我报告的噪声敏感性以及清醒与睡眠噪声暴露效应。
本研究将有助于阐明风电场噪声与道路交通噪声相比是否具有不同的睡眠干扰特征。
