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Sleep patterns during 30‐m nitrox simulated saturation dives
Author(s) -
Nagashima Hidetoshi,
Matsumoto Kazuya,
Seo Yoojin,
Mohri Motohiko,
Naraki Nobuo,
Matsuoka Shigeaki
Publication year - 2001
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1046/j.1440-1819.2001.00818.x
Subject(s) - polysomnography , sleep (system call) , sleep onset , latency (audio) , sleep onset latency , anesthesia , saturation (graph theory) , audiology , psychology , environmental science , medicine , mathematics , computer science , psychiatry , insomnia , operating system , combinatorics , telecommunications , apnea
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.