Effect of bright light on tolerance to night work.
Fifteen young (mean age 23.4 years) female nurses engaged in a resuscitation unit and working on a fast rotating shift schedule comprising two consecutive night shifts were exposed to short periods (4x20 min) of bright light (2350 lx) during their night duty to test a possible positive effect on their tolerance to night work.
Two nights with normal lighting (20-380 lx) and two nights with bright light were compared.
The following positive effects of bright light upon psychophysical conditions and performance efficiency were noted:
in particular, signs of better physical fitness;
less tiredness and sleepiness;
a more balanced sleep pattern;
and higher performance efficiency (letter cancellation test).
Mots-clés Pascal : Travail nocturne, Travail posté, Homme, Amélioration, Performance, Intensité lumineuse, Luminosité, Catécholamine, Hydrocortisone, Mélatonine, Infirmier, Personnel sanitaire, Hormone, Température corporelle, Hormone épiphysaire, Hormone aminoacide dérivé
Mots-clés Pascal anglais : Night work, Shift work, Human, Improvement, Performance, Luminous intensity, Luminosity, Catecholamine, Cortisol, Melatonine, Nurse, Health staff, Hormone, Body temperature, Pineal hormone, Aminoacid derivative hormone
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0151998
Code Inist : 002B30A05. Création : 199406.