CARDIOVASCULAR RESPONSES WITH STANDARD AND EXTENDED BLADDER COVERAGE G-SUITS DURING RAPID DECOMPRESSION

Authors
  1. Fraser, W.D.
  2. Goodman, L.S.
  3. Ackles, K.N.
  4. Mohn, D.
  5. Pecaric, M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The study compared the cardiovascular responses of subjects exposed to 60,000 ft. rapid decompressions while wearing the Combined Advanced Technology Enhanced Design "G" Ensemble (COMBAT EDGE or CE) and the Tactical Life Support System (TLSS). 8 subjects were rapidly decompressed from 22,500 ft. to 60,000 feet once with the CE ensemble and once with the TLSS ensemble. There were significant differences due to garment type on hear rate, stroke volume, cardiac index, and mean arterial pressure (P 0.0001), with TLSS providing better cardiovascular support. Oxygen saturation did not decrease to the same degree with CE as with TLSS (P 0.0001). Both TLSS and CE provided sufficient physiological support to maintain oxygen saturations above 65% during the three minute exposures to 60,000 ft. altitude. Short term physiological support at higher altitudes with greater PPB levels or longer duration excursions at 60,000 ft. may not be possible without greater g-suit bladder coverage and cardiovascular support provided by TLSS type garments.
Keywords
Tactical Life Support System;COMBAT EDGE;G-suits
Report Number
DCIEM-93-01 — Reprint
Date of publication
24 Nov 1992
Number of Pages
5
Reprinted from
Aviat Space Environ Med, vol 65, no 3, 1994, p 209-213
DSTKIM No
94-04483
CANDIS No
143224
Format(s):
Hardcopy;Originator's fiche received by DSIS

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