The effect of direct and indirect hand heating on finger blood flow and dexterity during cold exposure

被引：32

作者：

Ducharme, MB ^{[1
]}

Brajkovic, D ^{[1
]}

Frim, J ^{[1
]}

机构：

[1] Def & Civil Inst Environm Med, Human Protect & Performance, Toronto, ON M3M 3B9, Canada

来源：

JOURNAL OF THERMAL BIOLOGY | 1999年 / 24卷 / 5-6期

关键词：

finger dexterity; finger temperature; auxiliary heating; cold exposure; heating gloves; torso heating; comfort of extremities;

D O I：

10.1016/S0306-4565(99)00046-7

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

1. The aim of this study was to investigate if finger temperature or finger blood flow is the critical factor for maintenance of finger dexterity during cold exposure. 2. Subjects were exposed twice to -25 degrees C air for 3 h by using a Torso Heating Test (THT) where the torso was maintained to 42 degrees C with a heating vest while the hands were bare, and a Hand Heating Test (HHT) where the hands were heated with heated gloves. 3. Despite similar finger temperatures, finger blood flow was eight times lower and finger dexterity was decreased in HHT as compared to THT. 4. It is concluded that finger blood flow is the critical factor to maintain finger dexterity in the cold. Crown Copyright (C) 2000 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：391 / 396

页数：6

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