Data/hora: 16/06/2024 10:37:25

Provedor de dados: 	56	
País: 	Brazil	
Título: 	Sleep, ageing and night work	
Autores: 	Pires,M.L.N.; Teixeira,C.W.; Esteves,A.M.; Bittencourt,L.R.A.; Silva,R.S.; Santos,R.F.; Tufik,S.; Mello,M.T.	
Data: 	2009-09-01	
Ano: 	2009	
Palavras-chave: 	Sleep; Shift work; Night work; Aging; Polysomnography; REM; Slow wave sleep (SWS).	
Resumo: 	Studies have shown that the frequency or worsening of sleep disorders tends to increase with age and that the ability to perform circadian adjustments tends to decrease in individuals who work the night shift. This condition can cause consequences such as excessive sleepiness, which are often a factor in accidents that occur at work. The present study investigated the effects of age on the daytime and nighttime sleep patterns using polysomnography (PSG) of long-haul bus drivers working fixed night or day shifts. A total of 124 drivers, free of sleep disorders and grouped according to age (&lt;45 years, N = 85, and ≥45 years, N = 39) and PSG timing (daytime (D) PSG, N = 60; nighttime (N) PSG, N = 64) participated in the study. We observed a significant effect of bedtime (D vs N) and found that the length of daytime sleep was shorter [D: &lt;45 years (336.10 ± 73.75 min) vs N: &lt;45 years (398 ± 78.79 min) and D: ≥45 years (346.57 ± 43.17 min) vs N: ≥45 years (386.44 ± 52.92 min); P ≤ 0.05]. Daytime sleep was less efficient compared to nighttime sleep [D: &lt;45 years (78.86 ± 13.30%) vs N: &lt;45 years (86.45 ± 9.77%) and D: ≥45 years (79.89 ± 9.45%) and N: ≥45 years (83.13 ± 9.13%); P ≤ 0.05]. An effect of age was observed for rapid eye movement sleep [D: &lt;45 years (18.05 ± 6.12%) vs D: ≥45 years (15.48 ± 7.11%) and N: &lt;45 years (23.88 ± 6.75%) vs N: ≥45 years (20.77 ± 5.64%); P ≤ 0.05], which was greater in younger drivers. These findings are inconsistent with the notion that older night workers are more adversely affected than younger night workers by the challenge of attempting to rest during the day.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000900011	
Editor: 	Associação Brasileira de Divulgação Científica	
Relação: 	10.1590/S0100-879X2009005000011	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Medical and Biological Research  v.42 n.9 2009	
Fonte: 	info:eu-repo/semantics/openAccess