title: [Integrated protection capability afforded by a new type capstan anti-G equipment and anti-G straining maneuver].
abstract: Objective. To investigate the integrated protection capability afforded by a new type capstan anti-G equipment and anti-G straining maneuver, as a result we discussed the feasibility of protection for 8 G 10 s (rapid onset runs at 2 G/s) acceleration using an associated precept with the above both anti-G measures. Method. This study was accomplished using the human centrifuge with rapid onset at 2 G/s. First, we determined the relaxed +Gz tolerance of nine male aviation students, and then determined theirs most + Gz tolerance while thereinto the five aviation students using a new type capstan anti-G suit (NKH) + a new type anti-G valve (NKT) + L-1 anti-G straining maneuver (L-1) and the other four aviation students using a new type capstan counterpressure suit (NDC) + the new type anti-G valve (NKT) + L-1. Result. The most +Gz tolerance of five students was 8.80 +/- 0.27 G while using NKH + NKT + L-1 and was higher than their relaxed +Gz tolerance at 4.60 +/- 0.42 G (P< 0.01) and that the most +Gz tolerance of four students was 8.75 +/- 0.50 G while using NDC + NKT + L-1 and was higher than their relaxed +Gz tolerance at 4.50 +/- 0.46 G (P< 0.01). Conclusion. Pilot will be capable against the 8 G 10 s (rapid onset runs at 2 G/s) effectively using the new type capstan anti +/- G equipment and anti +/- G straining maneuver, and the provided precept has availability.
authors.affiliation: Institute of Aviation Medicine, Air Force, Beijing, China.
authors.forename: X C
authors.initials: XC
authors.lastname: Geng
authors.forename: C L
authors.initials: CL
authors.lastname: Zhan
authors.forename: G D
authors.initials: GD
authors.lastname: Yan
authors.forename: X
authors.initials: X
authors.lastname: Chu
authors.forename: X
authors.initials: X
authors.lastname: Lu
authors.forename: W X
authors.initials: WX
authors.lastname: Zhang
mesh_terms: D000054:Acceleration; D000337:Aerospace Medicine; D001359:Aviation / Q000193:education / Q000295:instrumentation; D002498:Centrifugation; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D005676:Gravity Suits; D006801:Humans; D018471:Hypergravity; D008297:Male; D010807:Physical Endurance / Q000502:physiology*