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Improved anti-G protection boosts sortie generation ability.
Aviat Space Environ Med. 1998 Feb; 69(2):117-20.AS

Abstract

BACKGROUND

There is a need for evaluation of new G protection equipment.

HYPOTHESIS

There is no difference between the two anti-G ensembles on affecting subjects' ability to tolerate multiple simulated aerial combat sorties.

METHODS

There were 15 subjects wearing the standard CSU-13 B/P anti-G ensemble (STD) or COMBAT EDGE/ATAGS (CE/ATAGS) ensemble who were exposed to 3 centrifuge-based simulated air combat sorties during a 2-h period. Each sortie consisted of four different G-profiles: 1) a gradual onset profile; 2) simulated air combat maneuver consisting of +4.5 to +7 Gz plateaus (4.5-7 SACM); 3) simulated air combat maneuver derived from actual fighter maneuvers with peaks up to +9 Gz (TACM); 4) simulated air combat maneuver consisting of +5.0 to +9.0 Gz plateaus (5-9 SACM). Each sortie was separated by a 20-min rest period. We measured heart rate, peripheral light loss (PLL), subjective effort level, subjective fatigue level, and reported recovery time.

RESULTS

There were no incidents of unintended G-induced loss of consciousness (G-LOC) with CE/ATAGS. There were four incidents of unintended G-LOC with STD. At the end of the third sortie, with CE/ATAGS, mean heart rate was lower during the 4.5-7 SACM (p < 0.001) and the TACM (p < 0.001); PLL was less during all three rapid onset profiles (p < 0.01); subjects reported less effort during the 4.5-7 SACM (p < 0.001), the TACM and the 5-9 SACM (p < 0.01); reported fatigue was significantly lower (p < 0.001); and reported recovery times were nearly halved (p < 0.01).

CONCLUSION

CE/ATAGS provided significantly greater G-protection than the standard anti-G ensemble. There was no G-LOC with CE/ATAGS. This greater protection should be of significant operational value in enhancing sortie generation capability by increasing fighter aircrew G-tolerance and decreasing aircrew fatigue.

Authors+Show Affiliations

Tong A
Crew Technology Division, Armstrong Laboratory, Brooks Air Force Base, TX, USA.
Balldin UI
No affiliation info available
Hill RC
No affiliation info available
Dooley JW
No affiliation info available

MeSH

AdultAviationFatigueFemaleGravitationGravity SuitsHumansMaleMilitary MedicinePhysical EnduranceWarfare

Pub Type(s)

Journal Article

Language

eng

PubMed ID

9491248

Citation

Tong, A, et al. "Improved anti-G Protection Boosts Sortie Generation Ability." Aviation, Space, and Environmental Medicine, vol. 69, no. 2, 1998, pp. 117-20.
Tong A, Balldin UI, Hill RC, et al. Improved anti-G protection boosts sortie generation ability. Aviat Space Environ Med. 1998;69(2):117-20.
Tong, A., Balldin, U. I., Hill, R. C., & Dooley, J. W. (1998). Improved anti-G protection boosts sortie generation ability. Aviation, Space, and Environmental Medicine, 69(2), 117-20.
Tong A, et al. Improved anti-G Protection Boosts Sortie Generation Ability. Aviat Space Environ Med. 1998;69(2):117-20. PubMed PMID: 9491248.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Improved anti-G protection boosts sortie generation ability. AU - Tong,A, AU - Balldin,U I, AU - Hill,R C, AU - Dooley,J W, PY - 1998/3/10/pubmed PY - 1998/3/10/medline PY - 1998/3/10/entrez SP - 117 EP - 20 JF - Aviation, space, and environmental medicine JO - Aviat Space Environ Med VL - 69 IS - 2 N2 - BACKGROUND: There is a need for evaluation of new G protection equipment. HYPOTHESIS: There is no difference between the two anti-G ensembles on affecting subjects' ability to tolerate multiple simulated aerial combat sorties. METHODS: There were 15 subjects wearing the standard CSU-13 B/P anti-G ensemble (STD) or COMBAT EDGE/ATAGS (CE/ATAGS) ensemble who were exposed to 3 centrifuge-based simulated air combat sorties during a 2-h period. Each sortie consisted of four different G-profiles: 1) a gradual onset profile; 2) simulated air combat maneuver consisting of +4.5 to +7 Gz plateaus (4.5-7 SACM); 3) simulated air combat maneuver derived from actual fighter maneuvers with peaks up to +9 Gz (TACM); 4) simulated air combat maneuver consisting of +5.0 to +9.0 Gz plateaus (5-9 SACM). Each sortie was separated by a 20-min rest period. We measured heart rate, peripheral light loss (PLL), subjective effort level, subjective fatigue level, and reported recovery time. RESULTS: There were no incidents of unintended G-induced loss of consciousness (G-LOC) with CE/ATAGS. There were four incidents of unintended G-LOC with STD. At the end of the third sortie, with CE/ATAGS, mean heart rate was lower during the 4.5-7 SACM (p < 0.001) and the TACM (p < 0.001); PLL was less during all three rapid onset profiles (p < 0.01); subjects reported less effort during the 4.5-7 SACM (p < 0.001), the TACM and the 5-9 SACM (p < 0.01); reported fatigue was significantly lower (p < 0.001); and reported recovery times were nearly halved (p < 0.01). CONCLUSION: CE/ATAGS provided significantly greater G-protection than the standard anti-G ensemble. There was no G-LOC with CE/ATAGS. This greater protection should be of significant operational value in enhancing sortie generation capability by increasing fighter aircrew G-tolerance and decreasing aircrew fatigue. SN - 0095-6562 UR - https://www.unboundmedicine.com/medline/citation/9491248/Improved_anti_G_protection_boosts_sortie_generation_ability_ L2 - https://antibodies.cancer.gov/detail/CPTC-ZAP70-1 DB - PRIME DP - Unbound Medicine ER -