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Acclimatization of older men to work...

Daugherty, Edward Payson.

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Acclimatization of older men to work in heat.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Acclimatization of older men to work in heat./
作者:	Daugherty, Edward Payson.
面頁冊數:	203 p.
附註:	Source: Dissertation Abstracts International, Volume: 49-04, Section: A, page: 0759.
Contained By:	Dissertation Abstracts International49-04A.
標題:	Education, Physical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8810721

Acclimatization of older men to work in heat.
Daugherty, Edward Payson.

Acclimatization of older men to work in heat. - 203 p.

Source: Dissertation Abstracts International, Volume: 49-04, Section: A, page: 0759.

Thesis (Ed.D.)--West Virginia University, 1987.

There is a paucity of evidence to support the hypothesis that there is no significant difference (NSD) between the rate of acclimatization gain and loss of young and old men as they work in a hot environment. Ten young men (Group 1 (x age 24.8 years)) and 5 older men (Group 2 (x age 64.4 years)) volunteered to complete a 39 day exercise regimen in an environmental chamber. Days 1-4 were the Baseline Phase (BL) (68-72 FSubjects--Topical Terms:

1018000
Education, Physical.

Acclimatization of older men to work in heat.
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245 1 0 $a Acclimatization of older men to work in heat.
300 $a 203 p.
500 $a Source: Dissertation Abstracts International, Volume: 49-04, Section: A, page: 0759.
500 $a Chairperson: Rachel Yeater.
502 $a Thesis (Ed.D.)--West Virginia University, 1987.
520 $a There is a paucity of evidence to support the hypothesis that there is no significant difference (NSD) between the rate of acclimatization gain and loss of young and old men as they work in a hot environment. Ten young men (Group 1 (x age 24.8 years)) and 5 older men (Group 2 (x age 64.4 years)) volunteered to complete a 39 day exercise regimen in an environmental chamber. Days 1-4 were the Baseline Phase (BL) (68-72 F $\ sp\circ $ dry bulb (DB), relative humidity (RH) 40%). Days 5-18 were the Acclimatization Phase (AC) (DB = 100 F $\ sp\circ $, RH = 40%). Days 19-39 were the Acclimatization Loss Phase (AL). During AL, the BL environment was maintained for 6 days followed by a retest on the seventh day when the environment was heated the same as during AC. AL continued for 3 weeks. The following variables were monitored to assess the physiologic responses to treatment: surface area, percent body fat, maximum oxygen consumption (Max VO $\ sb2 $) , hematocrit, hemoglobin, rate pressure product, cardiac output, workload (WL), perceived exertion, sweat rate, and skin and rectal temperature. Participants exercised for 50 continuous minutes each day at 40% of their Max VO $\ sb2 $. Group 1 experienced acclimatization on Day 18 by achieving a WL of 88% of BL. Group 2 achieved only 64% of the BL WL by Day 18 and did not acclimatize. Following 1 week of AL, WL for Group 2 was significantly lower than that of Group 1 (p = 0.023). Following 2 and 3 weeks of AL there were NSD between groups in achieved WL nor in rate of acclimatization loss. It is recommended that older men acclimatize to work in heat by maintaining proper hydration, alternating light and heavy days, and using heart rate as an indication of WL.
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650 4 $a Biology, Animal Physiology. $3 1017835
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