Document Detail


Cognitive performance and physiological changes in females at high G while protected with COMBAT EDGE and ATAGS.
MedLine Citation:
PMID:  10503749     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Female fighter pilots are flying the F-16 and F-15 with COMBAT EDGE, the positive pressure breathing under G (PBG) protection system. The standard CSU 13 B/P anti-G suit may soon be replaced with the Advanced Technology Anti-G suit. The purpose of this research was to compare human performance and physiological changes between the subjects protected by COMBAT EDGE with the standard anti-G suit (STD) and with the Advanced Technology Anti-G Suit (ATAGS). METHODS: Six female centrifuge subjects completed this experiment. Performance of the 3-min simulated aerial combat sorties on the Dynamic Environment Simulator. Heart rate, %SaO2 (percent arterial oxygen saturation), %rSO2 (percent regional cerebral tissue oxygen saturation) and electromyography (EMG) were compared between the two suit conditions. Subjective evaluations of the two suit conditions were also collected. RESULTS: No significant performance differences or EMG differences were found between the STD and ATAGS suits. In the ATAGS suit, %rSO2 and %SaO2 were significantly less and heart rate was significantly lower during the last minute of G exposure compared with the STD condition. Subjects rated the ATAGS suit as having provided better G tolerance, but more uncomfortable. The ATAGS were prototype suits, however, and were not custom fit to the women. CONCLUSIONS: Physiological changes did occur significantly during the last minute of G exposure, even though no significant performance differences were found between two suit conditions. Subjective comments supported the finding that the more G protection and body coverage afforded by the anti-G suit, the less comfortable the suit may be.
Authors:
L Zhang
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Aviation, space, and environmental medicine     Volume:  70     ISSN:  0095-6562     ISO Abbreviation:  Aviat Space Environ Med     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-10-21     Completed Date:  1999-10-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7501714     Medline TA:  Aviat Space Environ Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  857-62     Citation Subset:  IM; S    
Affiliation:
Department of Biomedical and Human Factors Engineering, Wright State University, Dayton, OH 45435-0001, USA. lzhang@cs.wright.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Aerospace Medicine*
Blood Gas Analysis
Centrifugation
Cognition / physiology*
Electromyography
Female
Gravity Suits / standards*
Heart Rate
Humans
Hypergravity / adverse effects*
Military Personnel / psychology
Monitoring, Physiologic
Positive-Pressure Respiration*
Psychomotor Performance / physiology*
Questionnaires
Sex Characteristics*
United States

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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