URINARY CATECHOLAMINE RESPONSE TO WATER IMMERSION

Abstract

The urinary excretion of adrenaline and norad renaline was measured by bioassay for 16 normal human subjects during 6 hours of complete water immersion. The excretion of adrenaline was moderately increased, possibly related to the anxiety associated with the immersion. The excretion of noradrenaline was significantly reduced during immersion. Six subjects were studied during passive vertical tilt following immersion. Ortho static intolerance was demonstrated and the increase in pulse rate and decrease in pulse pressure were significantly different from the control tilt. The probable mechanisms of the reduced noradrenaline excretion during immersion and its relation to the postimmersion impairment of orthostatic tolerance are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1963
Accession Number
AD0407741

Entities

People

  • Duane E. Graveline
  • Michael Mccally

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Autonomic Nervous System
  • Biomedical Research
  • Biophysics
  • Blood
  • Body Fluids
  • Cardiovascular Physiological Phenomena
  • Catecholamines
  • Chemistry
  • Endocrine Glands
  • Excretion
  • Government Procurement
  • Governments
  • Heart Rate
  • Hydrostatic Pressure
  • Norepinephrine
  • Peripheral Nervous System
  • Plastic Explosives

Fields of Study

  • Psychology

Readers

  • Cardiovascular Physiology