Maintaining Finger Dexterity in the Cold: A Comparison of Passive, Direct and Indirect Hand Heating Methods
Maintaining Finger Dexterity in the Cold: A Comparison of Passive, Direct and Indirect Hand Heating Methods
复制标题
在寒冷中保持手指灵活性：被动、直接和间接手部加热方法的比较
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
M. Ducharme
中科院分区：
文献类型：
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作者：
D. Brajkovic;M. Ducharme
摘要：研究了在寒冷环境下手指的灵巧性能和四肢舒适度，并尝试通过被动手保温（薄的针织手套和北极连指手套）、直接手加热（电加热手套）或间接手加热（加热躯干以增加手部的血液流动）来防止或尽量减少手冷却。8名男性受试者暴露在-25℃的空气中（风速^ 2 km/h） 3小时。在所有的实验中，一套三层的北极服装都是蠕虫。测量手指温度、手指血流量、脚趾温度、直肠温度和手指灵巧度。间接的手部加热被发现优于被动和直接的手部加热，因为不仅手指舒适和手指灵巧，而且整个身体（包括脚趾）在整整三个小时的过程中都保持舒适。此外，有了间接的手部加热，精细手指灵巧的任务可以徒手进行，如果有必要，没有冷伤的风险。
Abstract : Examined finger dexterity performance and extremity comfort during cold exposure while an attempt was made to prevent or minimize hand cooling by either passive hand insulation (thin, knitted gloves and Arctic mitts), direct hand heating (electrically heated gloves), or indirect hand heating (heating the torso in an attempt to increase blood flow to the hands) with and without gloves. Eight male subjects were exposed to -25 deg C air (wind ^ 2 km/h) for three hours. A three-layer, Arctic clothing ensemble was worm during all experiments. Finger temperature, finger blood flow, toe temperature, rectal temperature, and finger dexterity were measured. Indirect hand heating was found to be superior to passive and direct hand heating because not only was finger comfort and finger dexterity maintained, but the whole body (toes included) remained comfortable for the full three-hour session. In addition, with indirect hand heating, fine finger dexterity tasks can be performed barehanded, if necessary, without the risk of cold injury.