pISSN : 2383-6415   eISSN : 2383-6423

The Effect of Rapidly Rotating Shift work on the Fatigue Level, Urinary 17- KS, Na + and Cl- Excretion


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INFORMATION : page. 100~114 / 1999 Vol.1 No.1


ABSTRACT

This study was done to investigate the effects of rapidly-rotating shift work of two-day interval on fatigue level and the concentration of urinary 17-KS, Na+, Cl-. The subjects were 20 nursing college studentstcontrol group) and 15 nurses in a university hospital and the study was done from Apr. 21 to May 4th, 1999. In the test group, each 5 nurses were allocated to day shift(8 AM-4 PM), evening shift(4 PM-12 MN) and night shift(12 MN-8 AM) respectively. The fatigue level were measured 30 minutes after work start on the 2nd day of work shift. Urine specimens were collected at 8 AM, 4 PM and 12 MN on the 2nd day of work shift in the control group and 30 minutes before and after work on the 2nd day of work shift in the test group. The data were analyzed with SPSS (for Window, ver 7.5). Statistical analysis was performed by using t-test, paired t-test and ANOVA. The results were as follows. 1. The perceived fatigue level in shift work 1) The physical and mental fatigue level were significantly higher in night shift than that in day or evening shift(p<0.05). In the neuro-sensory fatigue level, night shift showed higher tendency than that in day or evening shift, but there were no significant differences between each shifts. 2) Comparison between the control group and the test group: Physical fatigue level was significantly higher in night shift than that in day or evening shift of the control group(P<0.001). Mental fatigue level was significantly higher in day or night shift than that in evening shift of the control group(P<.05). In the neuro-sensory fatigue level, test group showed higher tendency than that in the control group, but there were no significant differences between two groups. 3) The total fatigue level was higher in night shift than that in day shift or evening shift(P<.05). In comparing with the control group, night shift and day shift showed higher total fatigue level than that in the control groupip<0.05). 2. The concentration of urinary 17-KS, Na+ and Cl- In the control group, urinary 17-KS, Na+ and Cl- showed higher level in afternoon that in morning and night. In the test group, Cl- in day and evening shift and Na+ in evening shift showed higher level at the end of work. The 17-KS concentration at the begining and the end of work in three shift groups were lower than those in control group(p<0.05), however, Cl- concentration at the begining of work in day shift, and the end of work in day and evening shift were higher than those in control group(p<0.05). Cl- concentration at the begining and end of work in night shift were considerably higher than those in control group repectively(p<0.l, p<001). Na+ concentration showed a higher tendency in three shift groups except at the begining of work in night shift, but there were no statistical difference. In comparing concentration of the 17-KS, Na+ and Cl- among the shift groups, 17-KS concentration showed a lower tendency and Na+, Cl showed a higher tendency in night shift: The result of this study showes that biorhythm of shift work nurse was irregular. Fatigue level as the subjective index for evaluating the health problem concerning shift work was higher in night shift and proved to be in accordance with the concentration of urinary 17-KS, Na+ and Cl- used as objective indices. Disturbation of biorhythm and work stress due to night shift seems to cause the health problem of nurses and decrease of work efficiency. It is considered that work regualtion is necessary for the rational management of the nursing administration.

Keyword :

교대근무,피로도,Shift work,Fatigue Level,17-KS,Na+,Cl-


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