Tissue temperatures and whole-animal oxygen consumption after exercise.

نویسندگان

  • G A Brooks
  • K J Hittelman
  • J A Faulkner
  • R E Beyer
چکیده

BROOKS,GEORGE A., KARL J. HITTELMAN,JOHN A. FAULKNER, AND ROBERT E. BEYER. Tissue temperatures and whole-animal oxygen consumption after exercise. Am. J. Physiol. 22 l(2) : 427-43 1. 197 l.-Forced treadmill running caused rat muscle and rectal temperatures to increase 8.1 and 5.1 C, respectively. After exercise, muscle temperature fell exponentially but did not reach control values in an hour. Rectal temperature fell rapidly for the first 20 min after exercise, after which only a slow rate of return to resting levels was apparent. An exercise-induced adjustment in the hypothalamic set point was suggested. 02 consumption was high immediately after exercise, declined rapidly for the first 20 min of recovery, and then plateaued at a level significantly above resting. The hypothesis that a sizable portion of postexercise 02 consumption is due to increased tissue temperatures is substantiated. The fact that severe exercise results in a large, prolonged elevation in tissue temperature necessitates, as a consequence of the Qlo effect, that 02 consumption be significantly elevated. Since a part of the postexercise 02 consumption is not associated with recovery from anaerobic metabolism, the classical definition of 02 debt requires revision.

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عنوان ژورنال:
  • The American journal of physiology

دوره 221 2  شماره 

صفحات  -

تاریخ انتشار 1971