Santee W R, Endrusick T L
U.S. Army Research Institute of Environmental Medicine, Natick, MA 01760-5007.
Aviat Space Environ Med. 1988 Feb;59(2):178-82.
Proper selection of footwear for cold-wet environments is important in determining individual performance and comfort. Testing only total dry insulation (It) is not a wholly adequate basis for boot selection. The present study demonstrates an effective method for evaluating the effects of surface moisture on boot insulation. This method allows a more knowledgeable selection of footwear for cold-wet climates. In this study, regional insulation values were obtained under dry conditions, then during a soak in shallow water, and finally for insulation recovery after removal from water. Results for seven boots show no advantage of presently used synthetic materials during short soak episodes. Insulated leather-synthetic boots, however, recovered to dry insulation levels more rapidly than more traditional insulated leather boots. Rubber waterproof bottoms were the most effective boot construction for retaining insulation levels during water exposure.
在寒冷潮湿环境中正确选择鞋类对于确定个人表现和舒适度很重要。仅测试总干绝缘值（It）并非选择靴子的完全充分依据。本研究展示了一种评估表面水分对靴子绝缘效果影响的有效方法。这种方法能让人们在寒冷潮湿气候下更明智地选择鞋类。在本研究中，先在干燥条件下获取局部绝缘值，然后在浅水中浸泡时获取，最后在从水中取出后获取绝缘恢复值。七款靴子的测试结果表明，在短时间浸泡过程中，目前使用的合成材料并无优势。然而，皮革 - 合成材料绝缘靴比传统的皮革绝缘靴更快恢复到干绝缘水平。橡胶防水鞋底是在接触水期间保持绝缘水平最有效的靴子构造。
