title: Sleep patterns during 30-m nitrox simulated saturation dives.
abstract: The sleep patterns were examined during the simulated 30-m nitrox saturation dives. The standard polysomnography of 15 divers was recorded for a total of 255 nights, as were patterns of change or consistency in sleep variables. A reduction of total sleep time in accordance with the lengthening of sleep latency and the wake after sleep onset was observed through the latter part of the bottom period to the post-dive period, but the other sleep variables did not show any changes. These findings suggest that decompression and the psychological stress due to being in the closed environment of a hyperbaric chamber for a long time have effects on divers' sleep.
authors: Graduate School, University of East Asia, Shimonoseki, Japan. 99is003@mail.cc.toua-u.ac.jp
authors: H
authors: H
authors: Nagashima
authors: K
authors: K
authors: Matsumoto
authors: Y
authors: Y
authors: Seo
authors: M
authors: M
authors: Mohri
authors: N
authors: N
authors: Naraki
authors: S
authors: S
authors: Matsuoka
mesh_terms: D000328:Adult; D003664:Decompression / Q000706:statistics & numerical data; D004242:Diving / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009584:Nitrogen / Q000494:pharmacology*; D010100:Oxygen / Q000494:pharmacology*; D017286:Polysomnography; D011837:Radiation-Protective Agents / Q000494:pharmacology*; D012890:Sleep / Q000187:drug effects*; D013315:Stress, Psychological / Q000523:psychology; D013997:Time Factors; D014851:Wakefulness / Q000502:physiology
chemical_list: D011837:Radiation-Protective Agents; C041364:nitrox; D009584:Nitrogen; D010100:Oxygen