TY - JOUR
T1 - Establishing the acute physiological and sleep disruption characteristics of wind farm versus road traffic noise disturbances in sleep
T2 - a randomized controlled trial protocol
AU - Micic, Gorica
AU - Zajamsek, Branko
AU - Lechat, Bastien
AU - Hansen, Kristy
AU - Scott, Hannah
AU - Toson, Barbara
AU - Liebich, Tessa
AU - Dunbar, Claire
AU - Nguyen, Duc Phuc
AU - Decup, Felix
AU - Vakulin, Andrew
AU - Lovato, Nicole
AU - Lack, Leon
AU - Hansen, Colin
AU - Bruck, Dorothy
AU - Chai-Coetzer, Ching Li
AU - Mercer, Jeremy
AU - Doolan, Con
AU - Catcheside, Peter
PY - 2023/9/6
Y1 - 2023/9/6
N2 - Study Objectives: 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). Methods: 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. Results: 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. Conclusions: This study will help to clarify if wind farm noise has different sleep disruption characteristics compared to road traffic noise.
AB - Study Objectives: 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). Methods: 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. Results: 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. Conclusions: This study will help to clarify if wind farm noise has different sleep disruption characteristics compared to road traffic noise.
KW - electroencephalogram
KW - environment noise
KW - road traffic
KW - sleep disruption
KW - sleep disturbance
KW - sleep quality
KW - wind farm
KW - wind turbine
UR - http://www.scopus.com/inward/record.url?scp=85174239553&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/NHMRC/1113571
UR - http://purl.org/au-research/grants/ARC/SP120102185
U2 - 10.1093/sleepadvances/zpad033
DO - 10.1093/sleepadvances/zpad033
M3 - Article
AN - SCOPUS:85174239553
VL - 4
JO - Sleep Advances
JF - Sleep Advances
IS - 1
M1 - zpad033
ER -
