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Age, circadian rhythms, and sleep loss in flight crewsAge-related changes in trip-induced sleep loss, personality, and the preduty temperature rhythm were analyzed in crews from various flight operations. Eveningness decreased with age. The minimum of the baseline temperature rhythm occurred earlier with age. The amplitude of the baseline temperature rhythm declined with age. Average daily percentage sleep loss during trips increased with age. Among crewmembers flying longhaul flight operations, subjects aged 50-60 averaged 3.5 times more sleep loss per day than subjects aged 20-30. These studies support previous findings that evening types and subjects with later peaking temperature rhythms adapt better to shift work and time zone changes. Age and circadian type may be important considerations for duty schedules and fatigue countermeasures.
Document ID
19930046279
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gander, Philippa H.
(NASA Ames Research Center Moffett Field, CA, United States)
Nguyen, DE
(San Jose State Univ. Foundation; NASA, Ames Research Center Moffett Field, CA, United States)
Rosekind, Mark R.
(NASA Ames Research Center Moffett Field, CA, United States)
Connell, Linda J.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Aviation, Space, and Environmental Medicine
Volume: 64
Issue: 3
ISSN: 0095-6562
Subject Category
Aerospace Medicine
Accession Number
93A30276
Distribution Limits
Public
Copyright
Other

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