CAJ | 학술논문

目的观察雷达作业人员作业过程中心率和心率变异性的昼夜节律变化.方法以某雷达部队21名男性雷达作业人员为对象,于昼夜不同作业班次(上午班、下午班、小夜班和大夜班)上班前佩带"飞行员飞行生理参数记录检测仪",检测工作过程中动态心电图、心率等指标,分析有关心率变异性参数的变化.此外,将每一作业班次分为4个时段,比较同一班次不同时段平均心率的变化.结果雷达作业过程中不同班次的平均心率有统计学差异(F=7.287,P＜0.01),大夜班的平均心率较上午班、下午班、小夜班均明显降低(P＜0.01);大夜班的标化低频功率较上午班、下午班明显降低(P＜0.05),而标化高频功率较上午班、下午班显著增加(P＜0.05).上午班、下午班和小夜班不同时段的平均心率均有统计学差异(F=5.480、3.150、3.850,P＜0.05或P＜0.01),而且均呈现随着作业时间延长,平均心率逐渐降低的趋势;但大夜班中各时段间的平均心率无统计学差异.结论生物节律的变化对雷达作业人员的心率和有关心率变异性指标产生明显影响.
목적 관찰뢰체작업인원작업과정중심솔화심솔변이성적주야절률변화.방법 이모뢰체부대21명남성뢰체작업인원위대상,우주야불동작업반차(상오반、하오반、소야반화대야반)상반전패대"비행원비행생리삼수기록검측의",검측공작과정중동태심전도、심솔등지표,분석유관심솔변이성삼수적변화.차외,장매일작업반차분위4개시단,비교동일반차불동시단평균심솔적변화.결과 뢰체작업과정중불동반차적평균심솔유통계학차이(F=7.287,P＜0.01),대야반적평균심솔교상오반、하오반、소야반균명현강저(P＜0.01);대야반적표화저빈공솔교상오반、하오반명현강저(P＜0.05),이표화고빈공솔교상오반、하오반현저증가(P＜0.05).상오반、하오반화소야반불동시단적평균심솔균유통계학차이(F=5.480、3.150、3.850,P＜0.05혹P＜0.01),이차균정현수착작업시간연장,평균심솔축점강저적추세;단대야반중각시단간적평균심솔무통계학차이.결론 생물절률적변화대뢰체작업인원적심솔화유관심솔변이성지표산생명현영향.
Objective To investigate the circadian changes of heart rate (HR) and heart rate variability (HRV) on radar operators in day and night shifts. Methods Twenty-one military radar operators were selected as subject. Their HR was gotten from continually electrocardiogram recorded by a biomedical monitoring system in four different working shifts (morning, afternoon, early night and late night) and HRV was analyzed. In addition, each shift was divided into four phases and the average HR of different phases in same shift was compared. Results There was significant difference of average HR among four shifts (F=7. 287, P＜0.01). The average HR in late night was significantly lower than that in other three shifts. Comparing with morning and afternoon shifts, high frequency normalized unit (HFNU) in late night shift was significantly increased (P＜0.05). Low frequency normalized unit (LFNU) in late night shift was significantly decreased comparing with those in morning and afternoon shifts (P＜0. 05). The average HR in different phase of a shift showed significant differences among morning, afternoon and early night shifts (F= 5. 480, 3. 150, 3. 850,P＜0. 05 or P＜0. 01), and gradually decreased with working time. However, there was no significant difference of average HR in different working phase of late night shift. Conclusions Circadian change would significantly influence the HR and some HRV indices of military radar operators.