J-GLOBAL ID:200904044921867227  Research Project code:0250005243 Update date:Jan. 19, 2005

Effective arrangement of nap in night duty and judgment of its effect

Study period:2001 - 0
Organization (1):
Investigating Researcher (2):
Research overview:
Effect of nap during night duty includes contraction of precedent arousal time and suppression of fatigue and dissolution of sleepiness due to the nap. In order to draw out the effect of nap to a maximal extent, the time of taking nap is an important issue. When we consider continuous night duty, the effective time of nap for the second and the following days supposedly is different from that of the first day due to delay of body temperature phase and habituation to night duty. Therefore assuming night duty ranging continuous two days, we compare the effect of taking nap during the first half of the night duty with that of taking nap during the latter half, on each of two days, on fatigue suppression and dissolution of sleepiness, by measurement of sleeping brain wave, cortisol in sputum, and self-awareness.
Keywords (2):
nocturnal nap ,  night work
Project Organization (1):
  • (J327000000)
Research program: Ordinary Research
Ministry with control over the research :
Ministry of Education, Culture, Sports, Science and Technology
Research budget: 2001: \710,000

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