The influence of integrative lighting on sleep and cognitive functioning of shift workers during the morning shift in an assembly plant

Nov 14, 2021Applied ergonomics

How combined lighting affects sleep and thinking in morning shift assembly workers

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Abstract

A melanopic Equivalent Daylight Illuminance of 192 lux improved sleep efficiency and alertness among shift workers.

  • Integrative lighting settings were tested in a field study with 80 shift workers.
  • The study compared a control group with unchanged lighting to an integrative lighting group.
  • Improvements in sleep efficiency and reduced sleep latency were observed with the integrative lighting.
  • Increased alertness was noted in the integrative lighting group compared to standard lighting conditions.
  • The findings suggest that altering lighting in industrial settings may enhance employees' sleep and cognitive performance.

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