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Journal of Biosciences

, Volume 22, Issue 4, pp 477–488 | Cite as

Pattern of shift rota modulates oral temperature circadian rhythm and sleep-wakefulness profiles in shift workers

  • Shobha Gupta
  • Atanu Kumar Pati
  • Francis Levi
Article

Abstract

Twenty four shift workers (8 from a steel industry and 16 from a Government hospital) participated in the study. The subjects were instructed to self-measure oral temperature, 4 6 times a day for about three weeks. Sleep quantity and quality for each subject were analysed with the help of an appropriate inventory. The data were analysed by cosinor and power spectrum methods. The frequency of circadian rhythm detection was in the order of 48% in senior nurses, 29% in steel plant workers and 14% in junior nurses. These were also complemented by the results of power spectrum analysis. Present results suggest that rhythms of subjective fatigue and subjective drowsiness are governed neither by oral temperature oscillator nor by the sleep/wake cycle oscillator. The results show that shift rotation pattern chiefly modulates the circadian time structure of shift workers. It is also suggested that the phenomenon of circadian rhythm desynchronization in oral temperature appears to be independent of per day total sleep length.

Keywords

Circadian rhythm oral temperature rhythm desynchronization shift workers sleep length sleep quality 

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References

  1. Åkerstedt T 1984 Work Schedules and sleep;Experientia 40 417–422PubMedCrossRefGoogle Scholar
  2. Akerstedt T 1986 Sleep/wake disturbances in working life;Electroencephalogr. Clin. Neurophysiolo. Suppl 39 360–363Google Scholar
  3. Akerstedt T 1990 Physiological and psychophysiological effects of shift work;Scand. J. Work Environ. Health 16 67–73PubMedGoogle Scholar
  4. Åkerstedt T, Kecklund G and Knutsson A 1991 Spectral analysis of sleep electroencephalography in rotating three-shiftwork;Scand. J. Work Environ. Health 17 330–336PubMedGoogle Scholar
  5. Aschoff J 1983 Circadian control of body temperature;J. Therm. Biol. 8 143–147CrossRefGoogle Scholar
  6. Aschoff J and Wever R 1981 The circadian system of man; inHand-book of behavioural neurobiology (ed.) J Aschoff (London: Plenum Press) pp 311–331Google Scholar
  7. Barton J, Folkard S, Smith L and Poole A. J 1994 Effects on health of a change from a delaying to an advancing shift system;Occup. Environ. Med. 51 749–755PubMedCrossRefGoogle Scholar
  8. Bryden G and Holdstock T L 1973 Effect of night duty on sleep pattern of nurses;Psychophysiology 10 36–42PubMedCrossRefGoogle Scholar
  9. Chang A. J, Wang S Y and Liu H W 1993 The effect of shift system on sleep quality, sleep quantity, psychological disturbance, and family function of workers in Taiwan;Kaohsiung J. Med. Sci. 9 410–417Google Scholar
  10. Czeisler A. A, Moore-ede M C and Coleman R M 1982 Rotating shift work schedules that disrupts sleep are improved by applying circadian principles;Science 217 460–463PubMedCrossRefGoogle Scholar
  11. Dahlgren K 1981 Adjustment of circadian rhythms and EEG sleep functions to day and night sleep among permanent night workers and rotating shift workers;Psychophysiology 18 381–391PubMedCrossRefGoogle Scholar
  12. De-koninick J 1991 Biological rhythms associated with sleep psychological adjustment;J. Psychiatry-Neurosci. 16 115–122Google Scholar
  13. De Prins J, Cornelissen G and Malbecq W 1986 Statistical procedures in chronobiology and chronopher-macology;Annu. Rev. Chronopharmcol. 2 27–141Google Scholar
  14. Folkard S 1988 Circadian rhythms and shift work: Adjustment or masking?; inTrends in chronobiology (eds) W Th J M Hekkens, G A Kerkhoff and W J Reitveld (Oxford, New York: Pergamon Press) pp 173–182Google Scholar
  15. Folkard S 1990 Circadian performance rhythms: Some practical and theoretical implications;Philos. Trans. R. Soc. London B327 543–553Google Scholar
  16. Folkard S, Wever R and Wildgruber Ch M 1983 Multioscillatory control of circadian rhythms in human performance;Nature (London) 305 223–226CrossRefGoogle Scholar
  17. Gupta S 1992Circadian time structure in shift workers and diurnal healthy human subjects, Doctoral dissertation, Pt. Ravishankar Shukla University, RaipurGoogle Scholar
  18. Gupta S and Pati A K 1992 Data analysis methodology in chronobiological studies;J. Parasitol. Appl. Anim. Biol. 1 151–163Google Scholar
  19. Gupta S and Pati A K 1993 On job sleep availability: The performance of nurses on night shift; inChronobiology (ed.) A K Pati (Raipur: R S University) pp 97–104Google Scholar
  20. Gupta S and Pati A K 1994a Characteristics of circadian rhythm in six variables of morning active and evening active healthy human subjects;Indian J. Physiol. Pharmacol. 38 101–107PubMedGoogle Scholar
  21. Gupta S and Pati A K 1994b Desynchronization of circadian rhythm in a group of shift working nurses: effect of pattern of shift rotation;J. Human Ergolo. 23 121–131Google Scholar
  22. Gupta S and Pati A K 1995 Resolving power of modified Engelmann scale for determining chronotype in human population;J. Hum. Ecol. 6 21–27Google Scholar
  23. Halberg F, Johnson E A. Nelson W, Runge W and Sothern R 1972 Auto-rhythmometry procedures for physiologic self-measurments and their analysis;Physiol. Teacher 11–11Google Scholar
  24. Harrington J M 1978 A critical review of literature (London: Her Majesty’s Office)Google Scholar
  25. Harrington J M 1994 Shift work and health—a critical review of the literature on working hours;Ann. Acad. Med. Singapore 23 699–705PubMedGoogle Scholar
  26. Kripke D F, Cook B and Lewis OF 1971 The sleep of night workers: EFG recordings;Psychophysiology 17 377–384Google Scholar
  27. Monk T H, Weitzman E D, Fookson T E, Moline M L, Kronauer R E and Gander P H 1983 Task variables determine which biological clock controls circadian rhythms in human performance;Nature (London) 304 543–545CrossRefGoogle Scholar
  28. Motohashi Y, Reinberg A, Levi F, Nougier J, Benoit O, Foret J and Bourdeleau P 1987 Axillary temperature: a circadian marker rhythm for shift workers;Ergonomics 30 1235–1247PubMedCrossRefGoogle Scholar
  29. Moore- Ede-MC and Richardson G S 1985 Medical implications of shift work;Annu. Rev. Med. 36 607–617CrossRefGoogle Scholar
  30. Nelson W, Tong Y L, Lee J K and Halberg F 1979 Methods for cosinor rhythmometry;Chronobiologia 6 305–323PubMedGoogle Scholar
  31. Pati A K and Saini S K 1991 Desynchronization of oral temperature, pulse and performance circadian rhythms in shift working Indian nurses;Indian J. Exp. Biol. 29 1017–1021PubMedGoogle Scholar
  32. Reinberg A, Andlauer P, Guillet P and Nicolai A 1980 Oral temperature, circadian rhythm amplitude, aging and tolerance of shift-work;Ergonomics 23 55–64PubMedCrossRefGoogle Scholar
  33. Reinberg A, Andlauer P, De Prins J, Malbecq W, Vieux N and Bourdeleau P 1984 Desynchronization of the oral temperature circadian rhythm and intolerance to shift work;Nature (London) 308 272–274CrossRefGoogle Scholar
  34. Reinberg A, Motohashi Y, Bourdeleau P, Andlauer P, Lévi F and Bicakova-Rocher A 1988 Alteration of period and amplitude of circadian rhythms in shift workers, with special reference to temperature, right and left hand grip strength;Eur. J. Appl. Physiol. 57 15–25CrossRefGoogle Scholar
  35. Reinberg A, Motohashi Y, Bourdeleau P, Touitou Y, Nouguier J, Nouguier Jeanine, Lévi F and Nicolai A 1989 Internal desynchronization of circadian rhythms and tolerance of shiftwork;Chronobiologia 16 21–34PubMedGoogle Scholar
  36. Rutenfranz J 1982 Occupational health measures for night and shift-workers;J. Human. Ergol. 11 67–86Google Scholar
  37. Smolensky M H, Paustenbach D T and Scheving L E 1985 Biological rhythms, shift-work and occupational health;Ind. Hygiene Toxicol. Biol. Responses 38 175–213Google Scholar

Copyright information

© Indian Academy of Sciences 1997

Authors and Affiliations

  • Shobha Gupta
    • 1
  • Atanu Kumar Pati
    • 1
  • Francis Levi
    • 1
    • 2
  1. 1.C’hronophysiologv Laboratory, School of Life SciencesPt. Ravishankar Shukla UniversityRaipurIndia
  2. 2.‘Laboratoire —Chronobiologie-Chronopharmacologie-Cancer’ SDI-CNRS 1-6212Höpital Paul BrousseVillejuifFrance

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