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dc.contributor.authorNarciso, Fernanda Veruska [UNIFESP]
dc.contributor.authorBarela, Jose A.
dc.contributor.authorAguiar, Stefane A.
dc.contributor.authorCarvalho, Adriana N. S.
dc.contributor.authorTufik, Sergio [UNIFESP]
dc.contributor.authorMello, Marco Tulio de [UNIFESP]
dc.identifier.citationPlos One. San Francisco, v. 11, n. 4, p. -, 2016.
dc.description.abstractThe purpose of the study was to investigate the effects of shift work on the psychomotor and postural performance of night workers. The study included 20 polysomnography technicians working schedule of 12-h night shift by 36-h off. On the first day of protocol, the body mass and height were measured, and an actigraph was placed on the wrist of each participant. On the second day of protocol, sleepiness by Karolinska Sleepiness Scale, postural control by force platform (30 seconds) and psychomotor performance by Psychomotor Vigilance Task (10 minutes) were measured before and after 12-h night work. Results showed that after 12-h night work, sleepiness increased by 59% (p<0.001), postural control variables increased by 9% (p = 0.048), and 14% (p = 0.006). Mean reaction time, and the number of lapses of attention increased by 13% (p = 0.006) and 425% (p = 0.015), respectively, but the mean reciprocal reaction time decreased by 7%. In addition, there were correlations between sleepiness and postural control variables with opened eyes (r = 0.616, 95% confidence interval [CI] = 0.361-0.815en
dc.description.abstractr = 0.538en
dc.description.abstract95% CI = 0.280-0.748) and closed eyes (r = 0.557en
dc.description.abstract95% CI = 0.304-0.764, r = 0497en
dc.description.abstract95% CI = 0.325-0.715) and a pronounced effect of sleepiness on postural sway (R-2 = 0.393en
dc.description.abstract95% CI = 0.001-0.03). Therefore, 12-h night work system and sleepiness showed a negative impact in postural and psychomotor vigilance performance of night workers. As unexpected, the force platform was feasibility to detect sleepiness in this population, underscoring the possibility of using this method in the workplace to prevent occupational injuries and accidents.en
dc.publisherPublic Library Science
dc.relation.ispartofPlos One
dc.rightsAcesso aberto
dc.titleEffects of Shift Work on the Postural and Psychomotor Performance of Night Workersen
dc.description.affiliationUniv Fed Sao Paulo, Sao Paulo, SP, Brazil
dc.description.affiliationUniv Cruzeiro Sul, Sao Paulo, SP, Brazil
dc.description.affiliationAssoc Fundo Incent Pesquisa, Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Minas Gerais, Belo Horizonte, MG, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Sao Paulo, SP, Brazil
dc.description.sourceWeb of Science
dc.coverageSan Francisco
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