Bright environmental light improves the sleepiness of nightshift ICU nurses DOI Creative Commons
John E. Griepentrog, Hanna E. Labiner, Scott R. Gunn

et al.

Critical Care, Journal Year: 2018, Volume and Issue: 22(1)

Published: Nov. 13, 2018

Shift work can disturb circadian homeostasis and result in fatigue, excessive sleepiness, reduced quality of life. Light therapy has been shown to impart positive effects night shift workers. We sought determine whether or not prolonged exposure bright light during a reduces sleepiness enhances psychomotor performance among ICU nurses. This is single-center randomized, crossover clinical trial at surgical trauma ICU. nurses working were exposed 10-h period high illuminance (1500–2000 lx) white compared standard ambient fluorescent lighting the hospital. They then completed Stanford Sleepiness Scale Psychomotor Vigilance Test. The primary secondary endpoints analyzed using paired t test. A p value <0.05 was considered significant. total 43 matched pairs both exposures analyzed. When subjects experienced scores on than when hospital lighting: mean (sem) 2.6 (0.2) vs. 3.0 (0.2), = 0.03. However, they committed more errors: 2.3 1.7 environment for but increases number errors. ClinicalTrials.gov, NCT03331822 . Retrospectively registered 6 November 2017.

Language: Английский

Protecting the Melatonin Rhythm through Circadian Healthy Light Exposure DOI Open Access
María‐Ángeles Bonmatí‐Carrión,

Raquel Argüelles-Prieto,

María José Martínez-Madrid

et al.

International Journal of Molecular Sciences, Journal Year: 2014, Volume and Issue: 15(12), P. 23448 - 23500

Published: Dec. 17, 2014

Currently, in developed countries, nights are excessively illuminated (light at night), whereas daytime is mainly spent indoors, and thus people exposed to much lower light intensities than under natural conditions. In spite of the positive impact artificial light, we pay a price for easy access during night: disorganization our circadian system or chronodisruption (CD), including perturbations melatonin rhythm. Epidemiological studies show that CD associated with an increased incidence diabetes, obesity, heart disease, cognitive affective impairment, premature aging some types cancer. Knowledge retinal photoreceptors discovery melanopsin ganglion cells demonstrate intensity, timing spectrum must be considered keep biological clock properly entrained. Importantly, not all wavelengths equally chronodisrupting. Blue which particularly beneficial daytime, seems more disruptive night, induces strongest inhibition. Nocturnal blue exposure currently increasing, due proliferation energy-efficient lighting (LEDs) electronic devices. Thus, development systems preserve rhythm could reduce health risks induced by chronodisruption. This review addresses state art regarding crosstalk between system.

Language: Английский

Citations

197
Lighting in indoor environments: Visual and non-visual effects of light sources with different spectral power distributions DOI
Laura Bellia, Fabio Bisegna,

Gennaro Spada

et al.

Building and Environment, Journal Year: 2011, Volume and Issue: 46(10), P. 1984 - 1992

Published: April 18, 2011

Language: Английский

Citations

224
Analysis of circadian properties and healthy levels of blue light from smartphones at night DOI Creative Commons

Ji Hye Oh,

Heeyeon Yoo,

Hoo Keun Park

et al.

Scientific Reports, Journal Year: 2015, Volume and Issue: 5(1)

Published: June 18, 2015

Abstract This study proposes representative figures of merit for circadian and vision performance healthy efficient use smartphone displays. The recently developed luminous efficacy radiation (CER) illuminance (CIL) related to human health rhythm were measured compare three kinds commercial CIL values social network service (SNS) messenger screens from all displays higher than 41.3 biolux (blx) in a dark room at night the highest value reached 50.9 blx. These corresponded melatonin suppression (MSVs) 7.3% 11.4%, respectively. Moreover, bright had much MSV (58.7 ~ 105.2 blx 15.4 36.1%, respectively). also analyzed nonvisual visual optical properties while varying distance between screen eye controlling brightness setting. Finally, method possibly attenuate unhealthy effects was proposed investigated by decreasing emitting wavelength blue LEDs LCD backlight subsequently reducing effect display.

Language: Английский

Citations

148
Discomfort glare in open plan green buildings DOI
Michael Hirning, Gillian Isoardi,

Ian Cowling

et al.

Energy and Buildings, Journal Year: 2013, Volume and Issue: 70, P. 427 - 440

Published: Dec. 7, 2013

Language: Английский

Citations

139
Smart lighting: The way forward? Reviewing the past to shape the future DOI
Ivan Chew Ken Yoong, Dilukshan Karunatilaka, Chee Pin Tan

et al.

Energy and Buildings, Journal Year: 2017, Volume and Issue: 149, P. 180 - 191

Published: May 24, 2017

Language: Английский

Citations

139
The effect of lighting environment on task performance in buildings – A review DOI
Iason Konstantzos,

Seyed Amir Sadeghi,

Michael Kim

et al.

Energy and Buildings, Journal Year: 2020, Volume and Issue: 226, P. 110394 - 110394

Published: Aug. 12, 2020

Language: Английский

Citations

133
A Healthy, Energy-Efficient and Comfortable Indoor Environment, a Review DOI Creative Commons

Paulína Šujanová,

Monika Rychtáriková, Tiago Sotto Mayor

et al.

Energies, Journal Year: 2019, Volume and Issue: 12(8), P. 1414 - 1414

Published: April 12, 2019

Design strategies for sustainable buildings, that improve building performance and avoid extensive resource utilization, should also promote healthy indoor environments. The following paper contains a review of the couplings between (1) design, (2) environmental quality (3) occupant behavior. focuses on defining limits adaptation three aforementioned levels to ensure energy efficiency whole system are described measurable physical parameters relevant responsible human sensory systems, evaluating thermal comfort, visual air acoustical quality. goal is describe interactions where none passive participant, but rather an active agent wider human-built environment system. conclusions drawn in regard comfort occupant. study reviews more than 300 sources, ranging from journals, books, conference proceedings, reports complemented by standards directives.

Language: Английский

Citations

122
Influence of blue-enriched classroom lighting on students׳ cognitive performance DOI

Oliver Keis,

Hannah B. Helbig,

Judith Streb

et al.

Trends in Neuroscience and Education, Journal Year: 2014, Volume and Issue: 3(3-4), P. 86 - 92

Published: Sept. 1, 2014

Language: Английский

Citations

119
The therapeutic impacts of environmental design interventions on wellness in clinical settings: A narrative review DOI
Timothy Onosahwo Iyendo, Patrick Chukwuemeke Uwajeh,

Ezennia Stephen Ikenna

et al.

Complementary Therapies in Clinical Practice, Journal Year: 2016, Volume and Issue: 24, P. 174 - 188

Published: July 2, 2016

Language: Английский

Citations

93
Effects of dynamic lighting on office workers: First results of a field study with monthly alternating settings DOI
Y. Kort,

KCHJ Smolders

Lighting Research & Technology, Journal Year: 2010, Volume and Issue: 42(3), P. 345 - 360

Published: Sept. 1, 2010

Dynamic lighting is designed to have positive effects on well-being and performance. In a field experiment we tested whether these are detectable stable over time when employed in actual work settings. The study consists of two tranches, one following monthly alternating experimental design, the other yearly one. This paper reports first tranche. dual balanced office workers experienced dynamic or static according an a-b-a /b-a-b scheme three consecutive periods (N = 142, 90, 83). Questionnaire data suggest no significant differences for need recovery, vitality, alertness, headache eyestrain, mental health, sleep quality, subjective performance, although employees were more satisfied with lighting. Implications limitations discussed.

Language: Английский

Citations

123