Comparing performance on a simulated 12 hour shift rotation in young and older subjects.
Objectives: To simulate a 12 hour shift rotation and measure the difference in performance if any, between older and younger subjects. Significant reductions in neurobehavioural performance during shift work and particularly night work have long been recognised. There are conflicting reports of the...
| Publicado en: | Occupational & Environmental Medicine Vol. 58; no. 1; pp. 58 - 63 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
BMJ Publishing Group
Jan2001
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=107048958&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107048958 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13510711 22H jtl: Occupational & Environmental Medicine issn: 13510711 maglogo: N pubinfo: dt: Jan2001 vid: 58 iid: 1 pid: 8280 pub: BMJ Publishing Group artinfo: ui: 107048958 107048958 NLM11119636 2001078040 10.1136/oem.58.1.58 NLM11119636 107048958 ppf: 58 ppct: 5 formats: tig: atl: Comparing performance on a simulated 12 hour shift rotation in young and older subjects. aug: au: Reid K Dawson D Reid, K Dawson, D affil: Department of Obstetrics and Gynaecology, The University of Adelaide, The Queen Elizabeth Hospital, Woodville Road, Woodville, South Australia 5011 sug: subj: Shift Workers Age Factors Job Performance Evaluation Circadian Rhythm Descriptive Statistics Adult Male Female Interviews Questionnaires Diaries Sleep Motor Skills Evaluation Time Factors Polysomnography Repeated Measures Analysis of Variance Regression Unpaired T-Tests Paired T-Tests Linear Regression Statistical Significance Funding Source Human Adult: 19-44 years Male Female ab: Objectives: To simulate a 12 hour shift rotation and measure the difference in performance if any, between older and younger subjects. Significant reductions in neurobehavioural performance during shift work and particularly night work have long been recognised. There are conflicting reports of the effects of 12 hour shifts on performance, alertness, and safety. Furthermore, research suggests that older shift workers have more sleep disruption and maladaption to shift work. When this is combined with longer hours at work there may be considerable reductions in performance for older compared with younger workers.Methods: Thirty two subjects were allocated to groups according to age. Group one had 16 subjects with a mean (SD) age of 21.2 (2.7) years, and group two had 16 subjects with a mean (SD) age of 43.9 (6.8) years. Subjects came to the laboratory for six consecutive days and completed a simulated 12 hour shift rotation consisting of two 12 hour day shifts (0700-1900), followed by two 12 hour night shifts (1900-0700). During the work period subjects completed a computer administered neurobehavioural performance task every hour.Results: Performance for the older subjects was consistently lower than for the younger subjects. There was a significant difference in performance across the shift between older and younger subjects. There was a significant change in performance across the shifts in the older subjects, such that performance significantly increased across the day shifts and decreased across the night shifts. By contrast, the younger subjects were able to maintain performance across both day shifts and the second night shift.Conclusions: There are significant differences in performance of older and younger subjects during a simulated 12 hour shift rotation. Future studies both in the field and the laboratory would be useful in determining whether this is typical and if there are any important consequences for the older worker on 12 hour shifts. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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