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  • 1
    Electronic Resource
    Electronic Resource
    Experimental shift work studies of permanent night, and rapidly rotating, shift systems (1976)
    Springer
    International archives of occupational and environmental health 37 (1976), S. 125-137 
    Details
    ISSN: 1432-1246
    Keywords: Shift work ; Body temperature ; Circadian rhythm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of permanent night and rapidly rotating shift systems on the daily course of body temperature were examined in an experimental situation. In the first series of tests 4 subjects worked on night shift for 3 successive weeks. A further 4 subjects worked on rapidly rotating shift systems; 2 subjects on a 1 - 1 - 1 - system (first day early shift, 2nd day late shift, 3rd day night shift, 4th day free), and 2 subjects on a 2 - 2 - 2 -system (“metropolitan rota”). Only slight changes in the daily course of rectal temperature were found with single night shifts. The greatest changes in the circadian rhythm occurred during the first week of night shifts. p]Even after 21 consecutive night shifts we failed to find complete inversion of the daily course of body temperature. In view of these test results rapidly rotating shift systems would seem to be advisable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00378059
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Experimental shift work studies of permanent night, and rapidly rotating, shift systems (1980)
    Springer
    International archives of occupational and environmental health 46 (1980), S. 111-125 
    Details
    ISSN: 1432-1246
    Keywords: Shift work ; Night sleep ; Day sleep ; Ultradian rhythmicity ; Noise
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In connection with experimental shift work 20 volunteers were examined while working on different rapidly or slowly rotating shift systems. Sleep was analysed over a total of 112 days. Sleep was disturbed by childrens' noise or traffic noise. Sleep duration and sleep quality were particularly badly affected by noise with a high information value (childrens' noise). The ultradian rhythmicity of sleep did not appear to be disrupted by the change from day to night work. There were no significant differences between morning sleep and afternoon sleep after night work. In the laboratory experiments with fixed sleep durations, no separate effects on sleep quality could be established for different shift systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00378190
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Duration of sleep depending on the type of shift work (1980)
    Springer
    International archives of occupational and environmental health 46 (1980), S. 167-177 
    Details
    ISSN: 1432-1246
    Keywords: Sleep duration ; Shift work ; Day sleep ; Night sleep
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Time budget studies were performed in eight groups of shift workers. The 9,480 diary records of altogether 1,230 shift workers were analyzed and related to corresponding shift types. The shortest night sleep was found before the morning shift (mean 7.0 h). There were large differences in the duration of day sleep when classifying this sleep into specific types, as day sleep before 1st night shift (mean 2.1 h), between two night shifts (mean 6.1 h), or after last night shift (mean 4.2 h). Average sleep durations of five kinds of day sleep and 12 kinds of night sleep are presented together with 14 frequency distributions of durations of sleep. It is concluded that there should not be many night shifts in succession and that morning shifts should not begin too early to avoid an accumulation of sleep deficits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00378195
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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