文章基本信息

标题：Association of Working Hours with Biological Indices Related to the Cardiovascular System among Engineers in a Machinery Manufacturing Company
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作者：Takeshi SASAKI ; Kenji IWASAKI ; Tatsuo OKA 等
期刊名称：Industrial Health
印刷版ISSN：0019-8366
电子版ISSN：1880-8026
出版年度：1999
卷号：37
期号：4
页码：457-463
DOI：10.2486/indhealth.37.457
出版社：National Institute of Occupational Safety and Health
摘要：A field survey of 278 engineers (20-59 years) in a machinery manufacturing company was conducted to investigate the association of working hours with biological indices related to the cardiovascular system (heart rate variability, blood pressure and serum levels of magnesium, dehydroepiandrosterone sulfate and cholesterol). Average working hours (defined as <“hours at workplace”+“half a commuting time”>) and sleeping hours in this study were 60.2±6.3 hr/week and 6.6±0.8hr/day respectively. There were no significant relationships between working hours and biological indices related to the cardiovascular system, but sleeping hours was closely related to working hours negatively. Furthermore, the serum DHEA-S level was significantly related to sleeping hours positively. Combining these two results, it appeared that long working hours might lower the serum DHEA-S level due to the reduction of sleeping hours.
关键词：Working hours;Sleeping hours;Cardiovascular disease;Heart rate variability;Dehydroepiandrosterone sulfate;Fatigue