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Effects of age and ethanol on thermo...

Hopkins, Ruth Ann.

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Effects of age and ethanol on thermoregulatory responses of men to a cold air stress.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Effects of age and ethanol on thermoregulatory responses of men to a cold air stress./
作者:	Hopkins, Ruth Ann.
面頁冊數:	149 p.
附註:	Major Adviser: Zebulon V. Kendrick.
Contained By:	Dissertation Abstracts International56-09B.
標題:	Biology, Animal Physiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9600032

Effects of age and ethanol on thermoregulatory responses of men to a cold air stress.
Hopkins, Ruth Ann.

Effects of age and ethanol on thermoregulatory responses of men to a cold air stress. - 149 p.

Major Adviser: Zebulon V. Kendrick.

Thesis (Ph.D.)--Temple University, 1995.

The purpose of this study was to determine the effects of age and ethanol on thermal balance and peripheral blood flow during cold air exposure. Six young (25.5 $\pm$ 3.0 years) and 6 old men (54.0 $\pm$ 6.3 years) were exposed to a neutral (25$\sp\circSubjects--Topical Terms:

1017835
Biology, Animal Physiology.

Effects of age and ethanol on thermoregulatory responses of men to a cold air stress.
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100 1 $a Hopkins, Ruth Ann. $3 1291633
245 1 0 $a Effects of age and ethanol on thermoregulatory responses of men to a cold air stress.
300 $a 149 p.
500 $a Major Adviser: Zebulon V. Kendrick.
500 $a Source: Dissertation Abstracts International, Volume: 56-09, Section: B, page: 4763.
502 $a Thesis (Ph.D.)--Temple University, 1995.
520 $a The purpose of this study was to determine the effects of age and ethanol on thermal balance and peripheral blood flow during cold air exposure. Six young (25.5 $\pm$ 3.0 years) and 6 old men (54.0 $\pm$ 6.3 years) were exposed to a neutral (25$\sp\circ $c ) and cold (5$\sp\circ $c ) environment for 60 minutes. Subjects were administered placebo (orange juice) or 40% ethanol (2.0 mL/kg in orange juice) 20 minutes prior to the environmental exposure. All physiological parameters to determine thermoregulatory responses were taken with subjects in a seated position. The data collected for subjects during the testing conditions were mean skin temperature, rectal temperature, oxygen consumption, shivering intensity, forearm blood flow, and heart rate.
520 $a A repeated measures 2 x 2 x 2 x 5 ANOVA across all factors except age with 2 levels of age (young and old), 2 levels of environment (neutral and cold), 2 levels of drug treatment (placebo and ethanol), and 5 levels of time (Baseline 1, Baseline 2, average over 0 and 30 minutes of exposure, average over 30 and 60 minutes of exposure, and at 15 minutes of recovery) and a 2 x 2 x 2 x 3 ANOVA with time corrected for Baseline 2 were performed. When significant differences were revealed, a Newman-Keuls post-hoc test was used to locate differences. A probability level of.05 was accepted as significant.
520 $a Mean skin, rectal, and mean body temperatures were significantly lower in old subjects during all four testing conditions when compared to young subjects, with the greatest differences observed during the cold environment, placebo treatment. The cold air stress was sufficient to challenge thermoregulatory mechanisms in both young and old subjects with mean skin, rectal, and mean body temperatures significantly declining during the cold stress. During the 15 minutes of recovery these measurements remained below values observed at Baseline 2.
520 $a Thermoregulatory responses for the cold air stress were demonstrated by significant increases in oxygen consumption and decreases in forearm blood flow. Shivering intensity increased significantly with ethanol administration and paralleled the increase in oxygen consumption.
590 $a School code: 0225.
650 4 $a Biology, Animal Physiology. $3 1017835
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710 2 0 $a Temple University. $3 959342
773 0 $t Dissertation Abstracts International $g 56-09B.
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790 1 0 $a Kendrick, Zebulon V., $e advisor
791 $a Ph.D.
792 $a 1995
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9600032