Effects of bright artificial light on subjective mood of shift work nurses.

Abstract:

:The effects of bright artificial light on the subjective mental state of 10 female nurses working shifts at a university hospital were assessed. We investigated two series of five consecutive workshifts rotations comprising one normal, two night and two evening shifts, using two self-administered rating scales. The subjects were exposed to artificial light, brighter than 3,000 lux, for a total of 30 min during each workshift of the second series, whereas they worked under normal lighting conditions (approximately 250 lux) during the first series. A three-way layout ANOVA, with repeated measures, revealed that bright light tended to improve eagerness and reduce tension, and improved vigor, eagerness, appetite and impairment (the latter only on the second night) significantly or nearly significantly during night, but not evening, shifts. These results suggest that bright artificial light affects the mental state of nurses during night, but not evening, shift work.

journal_name

Ind Health

journal_title

Industrial health

authors

Iwata N,Ichii S,Egashira K

doi

10.2486/indhealth.35.41

subject

Has Abstract

pub_date

1997-01-01 00:00:00

pages

41-7

issue

1

eissn

0019-8366

issn

1880-8026

journal_volume

35

pub_type

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