Arieli R, Kerem D, Gonen A, Goldenberg I, Shoshani O, Daskalovic Y I, Shupak A
Israel Naval Medical Institute, Haifa, Israel.
Eur J Appl Physiol Occup Physiol. 1997;76(1):69-74. doi: 10.1007/s004210050214.
A wet suit may not provide adequate thermal protection when diving in moderately cold water (17-18 degrees C), and any resultant mild hypothermia may impair performance during prolonged diving. We studied heat exchange during a dive to a depth of 5 m in sea water (17-18.5 degrees C) in divers wearing a full wet suit and using closed-circuit oxygen breathing apparatus. Eight fin swimmers dived for 3.1 h and six underwater scooter (UWS) divers propelled themselves through the water for 3.7 h. The measurements taken throughout the dive were the oxygen pressure in the cylinder and skin and rectal temperatures (Tre). Each subject also completed a cold score questionnaire. The Tre decreased continuously in all subjects. Oxygen consumption in the fin divers (1.40 l.min-1) was higher than that of the UWS divers (1.05 l.min-1). The mean total insulation was 0.087 degree C.m2.W-1 in both groups. Mean body insulation was 37% of the total insulation (suit insulation was 63%). The reduction in Tre over the 1st hour was related to subcutaneous fat thickness. There was a correlation between cold score and Tre at the end of 1 h, but not after that. A full wet suit does not appear to provide adequate thermal protection when diving in moderately cold water.
在水温适中的冷水中（17 - 18摄氏度）潜水时，湿式潜水服可能无法提供足够的保暖保护，由此产生的轻度体温过低可能会影响长时间潜水时的表现。我们研究了穿着全套湿式潜水服并使用闭路氧气呼吸器的潜水员在17 - 18.5摄氏度的海水中潜至5米深度时的热交换情况。八名鳍状泳具潜水员潜水3.1小时，六名水下踏板车（UWS）潜水员在水中推进3.7小时。在整个潜水过程中测量的参数包括气瓶中的氧气压力、皮肤温度和直肠温度（Tre）。每位受试者还完成了一份冷感评分问卷。所有受试者的Tre均持续下降。鳍状泳具潜水员的耗氧量（1.40升·分钟-1）高于UWS潜水员（1.05升·分钟-1）。两组的平均总隔热值均为0.087摄氏度·平方米·瓦-1。平均身体隔热占总隔热的37%（潜水服隔热占63%）。第1小时内Tre的下降与皮下脂肪厚度有关。1小时末时冷感评分与Tre之间存在相关性，但之后则不存在。在水温适中的冷水中潜水时，全套湿式潜水服似乎无法提供足够的保暖保护。
