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Sleep and wakefulness in aircrew before and after transoceanic flightsThe effects of rapid transmeridian flight on sleep and wakefulness were studied in aircrew members before and after flying one of two routes: San Francisco (SFO) to London (LHR) or SFO to Tokyo. After an adaptation night, sleep and daytime sleepiness were measured objectively in SFO and during the first layover (L/O) of the target trip, using the 'core measures' described by Graeber et al. (1986) and respiration parameters, and the Multiple Sleep Latency Test (MSLT) described by Carscadon (1982); postsleep questionnaires provided subjective assessments. It was found that baseline sleep is not an ideal basis for subsequent comparison; nevertheless, there was an indication that L/O sleep periods tended to provide either less total sleep or less efficient sleep. During baseline, there was significant midday sleepiness tendency as measured by the MSLT; this tendency occurred at almost the same time on the second L/O day in LHR. Recommendations are offered for the adjustment of flight times and for scheduling times of permitted napping as accommodations for the periods of sleepiness tendency.
Document ID
19870038687
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dement, William C.
(Stanford Univ. CA, United States)
Seidel, Wesley F.
(Stanford Univ. CA, United States)
Cohen, Suzanne A.
(Stanford Univ. CA, United States)
Carskadon, Mary A.
(Stanford University CA, United States)
Bliwise, Nancy G.
(California, University San Francisco, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1986
Publication Information
Publication: Aviation, Space, and Environmental Medicine
Volume: 57
ISSN: 0095-6562
Subject Category
Behavioral Sciences
Accession Number
87A25961
Funding Number(s)
CONTRACT_GRANT: NIH-MH-05804
CONTRACT_GRANT: NCC2-302
Distribution Limits
Public
Copyright
Other

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