期刊
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
卷 37, 期 14, 页码 1124-1128出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0042-110573
关键词
diving; inert gas narcosis; flicker fusion; controlled environment
资金
- European Union [264816]
Although many factors contributing to inert gas narcosis onset and severity have been put forward, the available evidence is not particularly strong. Using objective criteria, we have assessed brain impairment associated with narcosis under various environmental diving conditions. 40 volunteers performed a no-decompression dive (33 m for 20 min) either in a dry chamber, a pool or open sea. They were assessed by critical flicker fusion frequency before the dive, upon arriving at depth, 5 min before ascent, on surfacing and 30 min post-dive. Compared to the pre-dive value, the mean value of each measurement was significantly different. An increase of flicker fusion to 105.00 +/- 0.69 % when arriving at depth is followed by a decrease to 94.05 +/- 0.65 %. This impairment persists when surfacing and 30 min post-dive, decreasing further to 96.36 +/- 0.73 % and 96.24 +/- 0.73 %, respectively. Intragroup comparison failed to demonstrate any statistical difference. When objectively measured narcosis may not be influenced by external factors other than pressure and gas. This might be of importance for training to avoid any over-or underestimation of the severity of narcosis based only on subjective symptoms.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据