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The effects of carbon dioxide on sle...

Keefe, Allan.

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The effects of carbon dioxide on sleep and thermoregulation in cold environments.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The effects of carbon dioxide on sleep and thermoregulation in cold environments./
Author:	Keefe, Allan.
Description:	175 p.
Notes:	Adviser: James S. Thoden.
Contained By:	Masters Abstracts International42-06.
Subject:	Biology, Animal Physiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ90092
ISBN:	9780612900929

The effects of carbon dioxide on sleep and thermoregulation in cold environments.
Keefe, Allan.

The effects of carbon dioxide on sleep and thermoregulation in cold environments. - 175 p.

Adviser: James S. Thoden.

Thesis (M.Sc.)--University of Ottawa (Canada), 1994.

In order to study the effects of mild hypercapnia on sleep and thermoregulation, 5 male volunteers (23.6 +/- 1.96 yrs) were exposed to air containing 0, 2, or 4% CO2, while sleeping in a double (9.0 clo) or single (4.5 clo) Canadian Forces sleeping ensemble (1 clo = 0.155°C·m 2·W-1) at -20°C. Each condition was presented twice in a completely randomized manner on non-consecutive nights. Standard polysomnographic EEG, EMG and EOG measures were monitored as well as rectal (Tr), mean skin (T¯sk) and toe (T toe) temperatures. Hypercapnia was associated with enhanced body cooling as indicated by a decreased time to minimal Tr and Ttoe (p < .05). In agreement with current knowledge of sleep in cold environments, sleeping in the single bag resulted in a significantly decreased percentage of REM sleep (p < .05) and trends towards decreases sleep efficiency and total sleep time (TST). Slow wave sleep (%SWS) tended to increase in the single bag condition. CO2 exposure was associated with a trend towards decreased TST and suppression of the cold induced increase in %SWS. The possible effects of body temperatures being mediated through sleep processes as opposed to direct CO2 effects, and the possible importance of SWS on thermoregulation were discussed.

ISBN: 9780612900929Subjects--Topical Terms:

1017835
Biology, Animal Physiology.

The effects of carbon dioxide on sleep and thermoregulation in cold environments.
LDR:02164nam 2200277 a 45 001 967784
005 20110915
008 110915s1994 eng d
020 $a 9780612900929
035 $a (UMI)AAIMQ90092
035 $a AAIMQ90092
040 $a UMI $c UMI
100 1 $a Keefe, Allan. $3 1291656
245 1 4 $a The effects of carbon dioxide on sleep and thermoregulation in cold environments.
300 $a 175 p.
500 $a Adviser: James S. Thoden.
500 $a Source: Masters Abstracts International, Volume: 42-06, page: 2184.
502 $a Thesis (M.Sc.)--University of Ottawa (Canada), 1994.
520 $a In order to study the effects of mild hypercapnia on sleep and thermoregulation, 5 male volunteers (23.6 +/- 1.96 yrs) were exposed to air containing 0, 2, or 4% CO2, while sleeping in a double (9.0 clo) or single (4.5 clo) Canadian Forces sleeping ensemble (1 clo = 0.155°C·m 2·W-1) at -20°C. Each condition was presented twice in a completely randomized manner on non-consecutive nights. Standard polysomnographic EEG, EMG and EOG measures were monitored as well as rectal (Tr), mean skin (T¯sk) and toe (T toe) temperatures. Hypercapnia was associated with enhanced body cooling as indicated by a decreased time to minimal Tr and Ttoe (p < .05). In agreement with current knowledge of sleep in cold environments, sleeping in the single bag resulted in a significantly decreased percentage of REM sleep (p < .05) and trends towards decreases sleep efficiency and total sleep time (TST). Slow wave sleep (%SWS) tended to increase in the single bag condition. CO2 exposure was associated with a trend towards decreased TST and suppression of the cold induced increase in %SWS. The possible effects of body temperatures being mediated through sleep processes as opposed to direct CO2 effects, and the possible importance of SWS on thermoregulation were discussed.
590 $a School code: 0918.
650 4 $a Biology, Animal Physiology. $3 1017835
650 4 $a Health Sciences, Public Health. $3 1017659
690 $a 0433
690 $a 0573
710 2 0 $a University of Ottawa (Canada). $3 1017488
773 0 $t Masters Abstracts International $g 42-06.
790 $a 0918
790 1 0 $a Thoden, James S., $e advisor
791 $a M.Sc.
792 $a 1994
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ90092