Analysis of autonomic nervous function in the crew of a large surface ship
10.3760/cma.j.issn.1009-6906.2018.01.001
- VernacularTitle:某大型水面舰艇舰员自主神经功能状况分析
- Author:
Lihua WANG
1
;
Ling LIU
1
;
Haihong TANG
1
;
Zhiguo WANG
1
;
Lei GAO
1
;
Ningkun ZHANG
1
;
Tianchang LI
1
Author Information
1. 海军总医院心内科,北京,100048
- Publication Type:Journal Article
- Keywords:
Surface ship;
Autonomic nervous system;
Dynamic electrocardiogram
- From:
Chinese journal of nautical medicine and hyperbaric medicine
2018;25(1):1-4,8
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze autonomic nervous function in the crew of a large surface ship.Methods Dynamic 24-hour Holter monitoring was performed in 157 afloat naval personnel at sea.Heart rate variability (HRV)and deceleration capacity of heart rate (DC) were analyzed off-line,and differences in the detected data were compared between naval personnel working or performing tasks at different departments or decks,or working at different hours.Then,the correlation between different working hours and HRV and DC was analyzed statistically.Results HRV standard deviation (SDNN) [(168.57 ± 28.02) ms] of the naval personnel in the mechanical and electrical department within 24 hours,SDANN every 5 minutes within 24 hours [(151.79 ± 28.59)ms],RMSSD within the 2 adjacent cardiac cycles in the whole course [(39.21 ± 11.44) ms],the percentage of PNN50 within the 2 adjacent cardiac cycles greater than 50 ms [(15.45 ± 8.09)％],high frequency (HF) [(548.18 ±329.27) ms2],and the data of SDNN [(168.93 ±26.97)ms],RMSSD [(41.06± 13.91)ms],PNN50[(17.45 ±8.58)％] and DC [(7.35 ±2.08)ms] in the ship husbandry department were all lower than those of the medical department and administrative department [SDNN (183.87 ± 42.50) ms,SDANN (166.40 ± 43.07) ms,RMSSD (49.78 ± 17.74) ms,PNN50 (21.94 ± 11.16) ％,HF (806.93 ± 603.37) ms2 and DC (8.11 ± 1.43) ms].Statistical significance could be noted,when comparisons were made between them(P ＜ 0.05 or P ＜ 0.01).However,there was no statistical significance in HRV and DC,when comparisons were made between the naval personnel working on the top surface deck and below the surface deck(P ＞0.05).The data of RMSSD,PNN50,HF andDC during deployment were lower than those before deployment (P ＜ 0.05).The length of afloat naval service [(39 ± 29) months] was negatively correlated with SDNN,SDANN,RMSSD,PNN50,HF and LF(P ＜ 0.05).Conclusions The working environment on the surface ship and deployment at sea could devastate autonomic nervous function of the crew.There existed certain extent of the injury in naval personnel working at different departments and correlation could be seen between the extent of injury and length of afloat naval service onboard the ship.
