Exercise in a cold environment after sleep deprivation

  • Margaret A. Kolka
  • Bruce J. Martin
  • Reynaldo S. Elizondo
Article

Summary

Seven subjects exercised to thermal comfort in a cold environment (0‡ C, 2.5 m·s−1) after normal sleep (control) and following a 50-h period of sleep deprivation. Resting core temperature (rectal) taken before the subject entered the cold environment was significantly lower (−0.5‡ C,P<0.05) following the 50-h period of wakefulness. However, rectal temperature was not different after 15 min of exercise during the two exposures, suggesting that the subjects stored heat more rapidly during the first 15 min of exercise after sleep deprivation. No significant differences in self-chosen exercise intensity, heart rate, metabolic rate, or exercise time were evident between the control and sleep deprived exposures. Fifty hours of sleep deprivation failed to alter the core temperature response during exercise in severe cold stress, and subjects chose identical work rates to minimize fatigue and cold sensation. The results suggest that the 50-h sleep deprivation period was not a true physiological stress during exercise in a cold environment. (Supported by Contract # DAMD 17-81-C1023.)

Key words

Exercise Cold-temperature Sleep deprivation 

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References

  1. Akerstadt T, Levi L (1978) Circadian rhythms in the secretion of cortisol, adrenaline, and noradrenaline. Eur J Clin Invest 8: 57–58Google Scholar
  2. Aschoff J, Heise A (1972) Thermal conductance in man: its dependence on time of day and on ambient temperature. In: Itoh S, Ogata K, Yoshimura H (eds) Advances in climatic physiology. Igaku Shoin, Tokyo, pp 334–348Google Scholar
  3. Brodan BM, Vostechovsky M, Kuhn M, Cepelak J (1969) Changes of mental and physical performance in sleep deprived healthy volunteers. Acta Nerv Super 11: 171–181Google Scholar
  4. Cabanac M (1969) Plaisir ou De'plaisir de la Sensation Thermique et Homeothermie. Physiol Beh 4: 359–364Google Scholar
  5. Cabanac M, Massonnet B, Belaiche R (1972) Preferred skin temperature as a function of inferred and mean skin temperature. J Appl Physiol 33: 699–703Google Scholar
  6. Cabanac M, LeBlanc J (1983) Physiological conflict in humans: Fatigue vs cold discomfort [Abstract] Fed Proc 42: 754Google Scholar
  7. Fiorica V, Higgins EA, Iampietro PF, Lategola MT, Davis AW (1968) Physiological responses of men during sleep deprivation. J Appl Physiol 24: 167–176Google Scholar
  8. Frohberg J, Karlsson CG, Levi L, Lidberg L (1972) Circadian variations in performance psychological ratings, catecholamine excretion and diuresis during prolonged sleep deprivation. Int J Psychobiol 2: 23–36Google Scholar
  9. Harris W, O'Hanlon JF (1972) A study of recovery functions in man. In: U.S. Army Technical Memorandum, 10-72. Aberdeen Research and Development Center, MDGoogle Scholar
  10. Horne JA (1978) A review of the biological effects of total sleep deprivation in man. Biol Psychol 7: 55–102Google Scholar
  11. Kreider MB (1961) Effects of sleep deprivation on body temperatures. Fed Proc 20: 214Google Scholar
  12. Marcus P, Belyavin A (1978) Thermal sensation during experimental hypothermia. Physiol Beh 21: 909–914Google Scholar
  13. Marks LE, Gonzalez RR (1974) Skin temperature modifies the pleasantness of thermal stimuli. Nature 247: 473–475Google Scholar
  14. Martin BJ (1981) Effect of sleep deprivation on tolerance to prolonged exercise. Eur J Appl Physiol 47: 345–354Google Scholar
  15. Martin BJ, Chen H-i (1983) Sympathoadrenal response to exercise after sleep deprivation. Physiologist 25: 207Google Scholar
  16. Nadel ER, Mitchell JW, Saltin B, Stolwijk JAJ (1971) Peripheral modifications to the central drive for sweating. J Appl Physiol 31: 828–833Google Scholar
  17. Nielsen B (1966) Regulation of body temperature and heat dissipation at different levels of energy and heat production in men. Acta Physiol Scand 68: 215–227Google Scholar
  18. Sawka MN, Gonzalez RR, Pandolf KB (1984) Effects of sleep deprivation on thermoregulation during exercise. Am J Physiol Regul Integ Comparat Physiol 246: R72-R77Google Scholar
  19. Shepard RJ (1969) Learning, habituation and training. Int Z Angew Physiol 28: 38–48Google Scholar
  20. Stephenson LA, Wenger CB, O'Donovan BH, Nadel ER (1984) Circadian rhythm in sweating and cutareous blood flow. Am J Physiol 246: R321–324Google Scholar
  21. Stolwijk JAJ, Saltin B, Gagge AP (1968) Physiological factors associated with sweating during exercise. Aerospace Med 39: 1101–1105Google Scholar
  22. Wenger CB, Roberts MF, Stolwijk JAJ, Nadel ER (1976) Nocturnal lowering of thresholds for sweating and vasodilation. J Appl Physiol 41: 15–19Google Scholar

Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • Margaret A. Kolka
    • 1
  • Bruce J. Martin
    • 1
  • Reynaldo S. Elizondo
    • 1
  1. 1.Physiology Section, Medical Sciences ProgramIndiana University School of MedicineBloomingtonUSA

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