PHYSIOLOGIC EFFECTS OF A HYPODYNAMIC ENVIRONMENT SHORT TERM STUDIES

Abstract

By a technique involving complete immersion in water, a hypodynamic situation was produced in which normal weight sensations were altered and movement was relatively effortless. Four subjects were evaluated after 6, 12, and 24 hours of this environment. Tilt table, centrifuge, and heat chamber studies demonstrated significant cardiovascular deterioration even after the 6- hour runs, becoming more severe with the 12- and 24-hour experiments. Pertinent psychomotor evaluations, anthropometric measures, and urine and blood studies also were done. The results of this study indicate that the cardiovascular adaptation to a hypodynamic environment of this type occurs early and the deterioration from even a 6-hour exposure is apparent.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1961
Accession Number
AD0262992

Entities

People

  • Duane E. Graveline
  • George W. Barnard

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Blood
  • Blood Counts
  • Body Regions
  • Cardiac Arrhythmias
  • Cardiovascular Physiological Phenomena
  • Cardiovascular System
  • Diurnal Variations
  • Government Procurement
  • Heart Rate
  • Hematocrit
  • Medical Laboratories
  • Musculoskeletal Physiology
  • Respiration
  • Specific Gravity
  • Test And Evaluation
  • United States

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