A Model of the Human Eye-Level Blood Flow Responding to G Stress
Abstract
A mathematical model of the closed loop human blood flow regulation system was derived from temporal arterial responses to +G sub Z stress in relaxed humans. An ensemble-average G to blood flow transfer function based on four subjects' responses to 28 +G sub Z stress runs was obtained on the USAFSAM human centrifuge. An analytic transfer function was fitted to the empirical function for frequencies from 5 to 200 mHz. The predictive performance of the individual subjects ensemble-averaged transfer function and the analytic transfer function was examined by comparing the actual blood flow response to the predictive responses. Within the control conditions, the analytic transfer function predicted the blood flow response with reasonable accuracy.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 21, 1978
- Accession Number
- ADA057064
Entities
People
- James J. Freeman
Organizations
- University of Detroit Mercy