NASA Technical Reports Server (NTRS) 19940025683: Circadian counter... | |
by NASA Technical Reports Server (NTRS) | |
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People who must work at night experience a number of | |
physiological and psychological difficulties. These | |
include sleepiness and fatigue at work, poor daytime | |
sleep, gastrointestinal distress, impaired concentration | |
and performance, disturbed mood, and increased health | |
complaints and risk of disease. These difficulties arise | |
because nocturnal work and daytime sleep take place at | |
inappropriate phases of the body's circadian rhythms. | |
Intense artificial light can shift the phase of human | |
circadian rhythms, and can thus be used to promote | |
adaptation to shifted work schedules. The first attempts | |
to investigate the efficacy of light treatment for MSFC | |
POCC shiftworkers took place during USML-1 and ATLAS-2. | |
The findings from these studies led to the development of | |
a Circadian Countermeasures Program that was implemented | |
during USMP-2. Light treatment and other circadian | |
countermeasures were employed to promote adjustment to | |
mission shiftwork in POCC cadre volunteers. Treatment | |
protocols were designed and customized for each | |
volunteer's work hours and personal preferences. | |
Treatment protocols included some or all of the | |
following: scheduled self-administration of intense | |
light, scheduled avoidance or attenuation of sunlight at | |
other times, and sleep schedules. Data from post-mission | |
questionnaires indicated that volunteers found the | |
program to be effective, convenient, and beneficial. | |
Date Published: 2016-10-07 17:12:42 | |
Identifier: NASA_NTRS_Archive_19940025683 | |
Item Size: 45713914 | |
Language: english | |
Media Type: texts | |
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