Laboratory and Field Studies of Naps and Caffeine as Practical Countermeasures for Sleep-Wake Problems Associated with Night Work

Details

• Personal Author:
  Erman M ; Randazzo AC ; Schweitzer PK ; Stone K ; Walsh JK
• Description:
  To evaluate the effects of napping, caffeine, and napping plus caffeine on performance and alertness in both laboratory and field settings. (1) Laboratory Study: parallel-groups design with random assignment to 1 of 4 experimental conditions. (2) Field Study: crossover design. Sleep laboratory and field settings. (1) Laboratory Study: 68 healthy individuals; (2) Field Study: 53 shiftworkers who worked nights or rotating shifts. (1) Laboratory Study: an evening nap opportunity before the first 2 of 4 consecutive simulated night shifts plus placebo taken all 4 nights, caffeine taken nightly, the combination of the nap and caffeine conditions, or placebo. (2) Field Study: an evening nap on the first 2 of 4 consecutive night shifts plus caffeine taken nightly versus placebo taken nightly without naps. (1) Laboratory Study: Napping, caffeine, and their combination all improved alertness and performance as measured by Maintenance of Wakefulness Test and Psychomotor Vigilance Task, but the combination of napping and caffeine was best in improving alertness. (2) Field Study: Napping plus caffeine improved performance as measured by Psychomotor Vigilance Test and decreased subjective sleepiness in individuals working the night shift. Napping plus caffeine helps improve performance and alertness of night-shift workers. [Description provided by NIOSH]
• Subjects:
  Laboratories Occupational Health Safety Shift Work Schedule Sleep Sleep Initiation And Maintenance Disorders
• Keywords:
  Laboratory-testing Shift-work Shift-workers Simulation-methods Sleep-deprivation Sleep-disorders Work-performance Workers
• ISSN:
  0161-8105
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; Missouri ; OSHA Region 7 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  39-50
• Volume:
  29
• Issue:
  1
• NIOSHTIC Number:
  nn:20029431
• Citation:
  Sleep 2006 Jan; 29(1):39-50
• Email:
  schwpk@stlo.mercy.net
• Federal Fiscal Year:
  2006
• Performing Organization:
  UACS, Inc.
• Peer Reviewed:
  True
• Start Date:
  19990930
• Source Full Name:
  Sleep
• End Date:
  20020929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d58ac5968b3292720a137929671912eb12e88201611a0deca7c055afe8aec87f100c23fcf5cada99e5a998d2b0926599bdbb876fd88fb640007887c9bee2f47c
• Download URL:
  https://stacks.cdc.gov/view/cdc/190412/cdc_190412_DS1.pdf
• File Type:
  [PDF - 1.24 MB ]