Thermoregulation in unrestrained rats during and after exposure to 1.5-4 G

J. Giacchino, Barbara A Horwitz, J. M. Horowitz

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Unrestrained rats were exposed to cold for 1 hr during and immediately after exposure to hypergravic fields (1.5-4 G) to determine if they recover their ability to thermoregulate on reentry to 1-G conditions. In contrast to the decreased body temperatures observed when cold exposure occurred concurrently with acceleration, hypothalamic, carotid, and brown fat temperatures did not fall when rats were exposed to cold immediately after return to 1 G. These results support the hypothesis that the thermoregulatory alterations seen under hypergravic conditions are manifestations of an effect of ongoing exposure to hypergravity and can be reversed on termination of acceleration. The reversibility of the thermoregulatory impairment is apparently unaffected by the magnitude of the acceleration field over a range of 1.5-4 G.

Original languageEnglish (US)
Pages (from-to)1049-1053
Number of pages5
JournalJournal of Applied Physiology Respiratory Environmental and Exercise Physiology
Issue number6
StatePublished - 1979

ASJC Scopus subject areas

  • Endocrinology
  • Physiology


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