Transfer functions for Eye-Level Blood Pressure during +G sub z Stress

Abstract

A description of the eye-level blood-pressure response to +G sub Z stress in relaxed humans was obtained as an empirical, ensemble-average, G-to- blood-pressure transfer function based on 3 subjects' responses to a total of 23 simulated aerial combat maneuvering runs on the USAFSAM Human Centrifuge. Three different analytic transfer functions were fitted to the empirical function for frequencies from 5 to 200 mHz, and predictive performance of the empirical and 3 analytic functions was examined. The double-zero, double-pole mathematical model most closely fit the empirical transfer function and displayed reasonable predictive ability.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1977
Accession Number
ADA046738

Entities

People

  • James M. Freeman
  • Kent K. Gillingham
  • Richard C. Mcnee

Organizations

  • United States Air Force School of Aerospace Medicine

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Aerial Warfare
  • Analytic Functions
  • Arteries
  • Biomedical Research
  • Blood
  • Cardiovascular Physiological Phenomena
  • Catheters
  • Control Systems
  • Frequency
  • Frequency Response
  • G Suits
  • Heart Rate
  • Magnetic Tape
  • Models
  • Power Spectra
  • Resonant Frequency
  • Transfer Functions

Readers

  • Approximation Theory.
  • Cardiovascular Physiology
  • Computational Modeling and Simulation