Expression and fluctuation in fatigue over five consecutive night shifts

2015 Fiscal Year Final Research Report

• Project/Area Number: 25862272
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Community health nursing
• Research Institution: Oita University of Nursing and Health Sciences (2015); Junshin Gakuen University (2013-2014)
• Principal Investigator: Ogata Ayako 大分県立看護科学大学, 看護学部, 助教 (30616058)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 連続夜勤 / 疲労 / 自覚症状

Outline of Final Research Achievements

We assessed diurnal and chronic fatigue during night and day shifts in individuals who worked 5 consecutive night shifts to elucidate the actual levels of fatigue following the night shift, fluctuations in diurnal fatigue, and factors affecting chronic fatigue.　We conducted a survey among 94 male workers from the manufacturing industry. The self-administered questionnaire comprised Jikaku-sho Shirabe to evaluate basic attributes and diurnal fatigue, and the Hirouchikusekido Check List to evaluate chronic fatigue.
The diurnal fatigue score was higher after the night shift than after the day shift. Peak fatigue was observed on the third day for both night and day shift workers, and fatigue level fluctuations were similar. The ages, work experience, and duration of working night shifts were higher, but average sleep duration was shorter, among 22 subjects with high chronic fatigue levels, compared to others with low chronic fatigue levels; moreover, the diurnal fatigue score was low.

Free Research Field

地域看護学