PROBLEMS RELATED TO SHIFT WORK A FIELD STUDY OF SWEDISH RAILWAY WORKERS WITH IRREGULAR WORK HOURS

A group of 132 engineers from the north of Sweden was included in the study. A subsample of about 50 subjects was selected for further laboratory investigations during a light and warm summer period and a dark and cold winter period. The mean for the hours of sleep noted on the sleep records was significantly lower for night work than for day work. The amount of sleep during night work was significantly less during the light period than during the dark period as was the amount of sleep during the day off. Body temperature measured during work followed a daytime pattern and had a low amplitude. Potassium excretion and the blood levels of cortisone displayed a stable circadian rhythm with a daytime pattern. Many environmental factors made the results of catecholamine data difficult to interpret. The frequency of reported peptic ulcers was higher in the engineer group than in some other groups.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03553140
• Authors:
  • Kolmodin-Hedman, B
  • Swensson, A
• Publication Date: 1975

Media Info

• Pagination: p. 254-262
• Serial:
  • Scandinavian Journal of Work, Environment & Health
  • Volume: 1
  • Publisher: Finnish Institute of Occupational Health
  • ISSN: 0355-3140
  • EISSN: 1795-990X
  • Serial URL: http://www.sjweh.fi/

Subject/Index Terms

• TRT Terms: Circadian rhythms; Human factors; Working conditions
• Subject Areas: Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00131534
• Record Type: Publication
• Source Agency: British Railways
• Files: TRIS
• Created Date: May 14 1976 12:00AM