Changes in the underwater working efficiency of the divers performing the simulated 480 m heliox saturation dive
10.3969/j.issn.1009-0754.2015.04.001
- VernacularTitle:模拟480m 氦氧饱和潜水不同深度下潜水员作业效率的变化
- Author:
Guoju FU
1
;
Yuxiang CHEN
;
Chaoting ZHONG
;
Ruiyong CHEN
;
Fushan LI
;
Jinghua GU
;
Hao YU
Author Information
1. 海军医学研究所
- Keywords:
Saturation dive;
Diver;
Underwater operation;
Working efficiency
- From:
Journal of Navy Medicine
2015;(4):289-290,295
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore changes in the capacity and working efficiency of divers performing deep saturation dives at various depths.Methods The divers completed the specified underwater operations at the depths of 70 m,255 m and 493 m,and changes in their working efficiency were assessed by working time and errors occurred during the underwater operations.Results The time consumed for the joining up of flanges,the binding and measurement of underwater objects at the depth of 255 m all significantly prolonged,when compared with the time used at 70 m(P <0.05).The time used for the joining up of flanges,the binding of underwa-ter objects at the depth of 493 m did not prolong significantly,when compared with the time spent at 255 m(P <0.05).However,the time used for underwater measurement prolonged significantly(P <0.01)and the rate of error both in the joining up of flanges and meas-urement of underwater objects increased significantly (P <0.05).Conclusion In deep saturation dives,the capability and working ef-ficiency of divers all considerably reduced.The greater the depths were,the more significantly their operating dexterity and short-term memory were affected.
