低水温潜水时机体中心温度的变化

Changes of core temperature of diver in low temperature water

目的:研究无加热保暖条件下低水温潜水时机体中心体温的变化。方法:潜水员着干式潜水服,潜入平均温度13.6℃的水中,实时监测潜水员机体中心体温。每5min记录1次,观察体温的变化,描绘温度变化曲线。结果:累计潜水时间155 min,机体中心温度由37.25℃下降至35.80℃。曲线呈现缓慢上升后迅速下降,并有后降现象出现。结论:无加热保暖条件下的低水温潜水只能维持较短时间,应加强较长时间低水温潜水的医学防护研究。

Object： To study the changes of core temperature when a diver didn＇t wear the coldproofing and heating clothing in the low temperature water. Methods： The subject in dry diving suit dived in the water of the average 13.6℃ temperature. His core body temperature was observed on the real time and recorded once every 5 min. Results： The total diving time was 155 min and the core temperature dropped from 37.25℃ to 35.80℃. The temperature curve rose slowly in the initial stage and then dropped quickly. The phenomenon of afterdrop also could be observed in this study. Coneulsion： Under the condition of no cold - proofing and heating, a diver can dive only for a short time. The study of medical protection for divers exposed in the low temperature surroundings for a long time should be strengthened.