Suggestions on monitoring and support for divers’ body load during 100 m-108 m heliox saturation diving at sea
10.3760/cma.j.cn311847-20210305-00073
- VernacularTitle:海上100 m氦氧饱和-108 m巡潜潜水员的机体负荷监测及保障建议
- Author:
Yipu WANG
1
;
Yangyang WANG
;
Lijian ZHU
;
Qingyuan ZHANG
;
Houyong LIANG
;
Yuanqing YANG
;
Mengyao JI
;
Quan ZHOU
Author Information
1. 572000 海南省三亚，解放军92143部队
- Publication Type:Journal Article
- Keywords:
Saturation diving;
Body load;
Monitoring
- From:
Chinese journal of nautical medicine and hyperbaric medicine
2021;28(6):679-682
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To monitor and analyze the divers’ body load during hyperbaric exposure in deep heliox saturation diving at sea, so as to provide reference for safeguarding the safety and health of divers.Methods:The heart rate and rating of perceived exertion (RPE) of the divers were taken to monitor their body loads and the results were analyzed.Results:The heart rates of the four divers were stable. At 6: 30 (63 m) on the third day of decompression, diver 1 had a very low heart rate of 43 beats/min and diver 3 had a heart rate of 53 beats/min. There was no statistically significant difference in the mean heart rates of divers during saturation exposure and each time point of decompression with those before entering the cabin. The overall RPE results of divers ranged from 6 to 16 points, and the overall trend of development was consistent with the pressure change; the highest load was shown in the stage from 100 m stable pressure to the end of excursion diving, while the loads in other stages were relatively small. The mean value of RPE before entering the cabin was slightly higher than that in the pressurized stage, and it reached the peak in the excursion diving stage and then remained stable in the decompression stage. The RPE results of divers in the second diving bell at the end of excursion diving stage were significantly higher than those before entering the cabin ( t=-4.700, P=0.018). Conclusion:It is of important value to guarantee the operation safety by monitoring the divers’ body loads under high pressure. The combination of monitoring heart rate and RPE results can accurately reflect the body load and is conducive to the safety of diving operation.
