Effects of chronotype on sleep, mood and cardiovascular circadian rhythms in rotating night shift medical workers.

IF 2.6 3区医学 Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH International Archives of Occupational and Environmental Health Pub Date : 2024-05-01 Epub Date: 2024-03-02 DOI:10.1007/s00420-024-02060-4

Jinzhen Jiang, Guohua Chen, Xinhua Song, Jiajia Lu, Jing Wang, Fengfei Ding, Li Ba, Junhua Mei

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Abstract

Purpose: Whether chronotype affects the health outcomes of night shift work populations is unknown. This study aimed to assess the influence of different chronotypes in the rotating night shift population on sleep status, mood, blood pressure (BP), and heart rate variability (HRV), as well as the circadian rhythm of BP and HRV.

Methods: A total of 208 rotating night shift workers were included. All participants completed structured questionnaires to assess chronotype, mood and sleep status. During their daily lives outside of the night shift, they underwent 24-hour Holter electrocardiogram monitoring and 24-hour ambulatory blood pressure monitoring. Day-time and night-time BP and BP dipping were obtained. Day-time and night-time HRV values (SDNN, RMSSD, LF, HF, LF nu, SD1, SD2 and SD2/SD1) were calculated and fitted to the cosine period curve. Three circandian parameters (mesor, amplitude and acrophase) were extracted to quantify the circadian rhythm of the HRV indices.

Results: Among all three groups, E-type showed more fatigue and sleepiness. In addition, E-type showed blunted diastolic BP dipping. Notably, E-type showed association with higher RMSSD, LF, HF and SD1 in the night time, and higher mesors of RMSSD and LF and amplitude of SD2/SD1 in circadian analysis.

Conclusion: Chronotype is a factor affecting fatigue, sleepiness and cardiovascular circadian rhythms of rotating night shift workers. Chronotype should be taken into consideration for managing night-shift rotation to promote occupational health.

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时间型对轮值夜班医务人员睡眠、情绪和心血管昼夜节律的影响。

目的：时间型是否会影响夜班工作人群的健康状况尚不清楚。本研究旨在评估轮班夜班人群中不同时间型对睡眠状态、情绪、血压和心率变异性的影响，以及血压和心率变异性的昼夜节律：方法：共纳入 208 名轮班夜班工人。所有参与者都填写了结构化问卷，以评估时间型、情绪和睡眠状况。在夜班以外的日常生活中，他们接受了 24 小时 Holter 心电图监测和 24 小时非卧床血压监测。监测结果包括日间和夜间血压以及血压骤降情况。计算昼夜心率变异值（SDNN、RMSSD、LF、HF、LF nu、SD1、SD2 和 SD2/SD1），并与余弦周期曲线拟合。提取了三个昼夜节律参数（间期、振幅和昼相），以量化心率变异指数的昼夜节律：结果：在所有三组中，E 型表现出更多的疲劳和困倦。此外，E 型患者的舒张压下降速度减慢。值得注意的是，E 型在夜间显示出较高的 RMSSD、LF、HF 和 SD1，在昼夜节律分析中显示出较高的 RMSSD 和 LF 中位数以及 SD2/SD1 振幅：时间型是影响轮换夜班工人疲劳、嗜睡和心血管昼夜节律的一个因素。在管理夜班轮换时应考虑到时间型，以促进职业健康。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Archives of Occupational and Environmental Health 医学-公共卫生、环境卫生与职业卫生

CiteScore

5.60

自引率

6.70%

发文量

127

审稿时长

3 months

期刊介绍： International Archives of Occupational and Environmental Health publishes Editorials, Review Articles, Original Articles, and Letters to the Editor. It welcomes any manuscripts dealing with occupational or ambient environmental problems, with a special interest in research at the interface of occupational health and clinical medicine. The scope ranges from Biological Monitoring to Dermatology, from Fibers and Dust to Human Toxicology, from Nanomaterials and Ultra-fine Dust to Night- and Shift Work, from Psycho-mental Distress and Burnout to Vibrations. A complete list of topics can be found on the right-hand side under For authors and editors. In addition, all papers should be based on present-day standards and relate to: -Clinical and epidemiological studies on morbidity and mortality -Clinical epidemiological studies on the parameters relevant to the estimation of health risks -Human experimental studies on environmental health effects. Animal experiments are only acceptable if relevant to pathogenic aspects. -Methods for studying the topics mentioned above.