The effects of dynamic lighting on office workers : first-year results of a longitudinal field study

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Abstract

Dynamic lighting is designed to have positive effects on wellbeing and performance. In a field experiment we tested whether these effects are detectable and stable over time when employed in actual work settings. This 2-year study consists of two tranches, one following a monthly alternating experimental design, the other a yearly alternating one. This paper reports on the first tranche. In a fully counterbalanced design, office workers experienced dynamic or static lighting according to an a-b-a scheme over 3 consecutive periods (N=142, 90, and 83). Questionnaire data suggest no significant differences for need for recovery, vitality, alertness, headache and eyestrain, mental health, sleep quality, or subjective performance, although employees were more satisfied with dynamic lighting. Yet it is too early to discard the hypotheses and claims made about dynamic lighting altogether. Its effects may still emerge in environments with limited daylight, over a longer time period, or when more pronounced or differently shaped lighting patterns are applied.
Original languageEnglish
Title of host publicationProceedings of the International Conference on the Effects of Light on Wellbeing (Experiencing Light 2009), 26-27 October 2009, Eindhoven, The Netherlands
EditorsY.A.W. Kort, xx et al
Place of PublicationEindhoven
PublisherEindhoven University of Technology
Pages114-121
ISBN (Print)978-90-386-2053-4
Publication statusPublished - 2009
Eventconference; Experiencing Light 2009, International Conference on the effects of light on well-being, Eindhoven, The Netherlands; 2009-10-26; 2009-10-27 -
Duration: 26 Oct 200927 Oct 2009

Conference

Conferenceconference; Experiencing Light 2009, International Conference on the effects of light on well-being, Eindhoven, The Netherlands; 2009-10-26; 2009-10-27
Period26/10/0927/10/09
OtherExperiencing Light 2009, International Conference on the effects of light on well-being, Eindhoven, The Netherlands

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Lighting
Design of experiments
Health
Personnel
Recovery
Experiments

Cite this

Kort, de, Y. A. W., & Smolders, K. C. H. J. (2009). The effects of dynamic lighting on office workers : first-year results of a longitudinal field study. In Y. A. W. Kort, & X. et al (Eds.), Proceedings of the International Conference on the Effects of Light on Wellbeing (Experiencing Light 2009), 26-27 October 2009, Eindhoven, The Netherlands (pp. 114-121). Eindhoven: Eindhoven University of Technology.
Kort, de, Y.A.W. ; Smolders, K.C.H.J. / The effects of dynamic lighting on office workers : first-year results of a longitudinal field study. Proceedings of the International Conference on the Effects of Light on Wellbeing (Experiencing Light 2009), 26-27 October 2009, Eindhoven, The Netherlands. editor / Y.A.W. Kort ; xx et al. Eindhoven : Eindhoven University of Technology, 2009. pp. 114-121
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abstract = "Dynamic lighting is designed to have positive effects on wellbeing and performance. In a field experiment we tested whether these effects are detectable and stable over time when employed in actual work settings. This 2-year study consists of two tranches, one following a monthly alternating experimental design, the other a yearly alternating one. This paper reports on the first tranche. In a fully counterbalanced design, office workers experienced dynamic or static lighting according to an a-b-a scheme over 3 consecutive periods (N=142, 90, and 83). Questionnaire data suggest no significant differences for need for recovery, vitality, alertness, headache and eyestrain, mental health, sleep quality, or subjective performance, although employees were more satisfied with dynamic lighting. Yet it is too early to discard the hypotheses and claims made about dynamic lighting altogether. Its effects may still emerge in environments with limited daylight, over a longer time period, or when more pronounced or differently shaped lighting patterns are applied.",
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Kort, de, YAW & Smolders, KCHJ 2009, The effects of dynamic lighting on office workers : first-year results of a longitudinal field study. in YAW Kort & X et al (eds), Proceedings of the International Conference on the Effects of Light on Wellbeing (Experiencing Light 2009), 26-27 October 2009, Eindhoven, The Netherlands. Eindhoven University of Technology, Eindhoven, pp. 114-121, conference; Experiencing Light 2009, International Conference on the effects of light on well-being, Eindhoven, The Netherlands; 2009-10-26; 2009-10-27, 26/10/09.

The effects of dynamic lighting on office workers : first-year results of a longitudinal field study. / Kort, de, Y.A.W.; Smolders, K.C.H.J.

Proceedings of the International Conference on the Effects of Light on Wellbeing (Experiencing Light 2009), 26-27 October 2009, Eindhoven, The Netherlands. ed. / Y.A.W. Kort; xx et al. Eindhoven : Eindhoven University of Technology, 2009. p. 114-121.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AB - Dynamic lighting is designed to have positive effects on wellbeing and performance. In a field experiment we tested whether these effects are detectable and stable over time when employed in actual work settings. This 2-year study consists of two tranches, one following a monthly alternating experimental design, the other a yearly alternating one. This paper reports on the first tranche. In a fully counterbalanced design, office workers experienced dynamic or static lighting according to an a-b-a scheme over 3 consecutive periods (N=142, 90, and 83). Questionnaire data suggest no significant differences for need for recovery, vitality, alertness, headache and eyestrain, mental health, sleep quality, or subjective performance, although employees were more satisfied with dynamic lighting. Yet it is too early to discard the hypotheses and claims made about dynamic lighting altogether. Its effects may still emerge in environments with limited daylight, over a longer time period, or when more pronounced or differently shaped lighting patterns are applied.

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Kort, de YAW, Smolders KCHJ. The effects of dynamic lighting on office workers : first-year results of a longitudinal field study. In Kort YAW, et al X, editors, Proceedings of the International Conference on the Effects of Light on Wellbeing (Experiencing Light 2009), 26-27 October 2009, Eindhoven, The Netherlands. Eindhoven: Eindhoven University of Technology. 2009. p. 114-121