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GILLINGHAM KK, FosCK JP. High-G training farKfighter aircrewN managers and aeromedical scientists. and research efforts Aviat. Space Environ. Med. 1988: 59:12-9.., aimed at preventing G-T.OC in flight were reinitiated in a From 8 Jan 85 through 42 Feb 86, 744 USAF fighter alrcrew from number of laboratories, including our own. One of the most Tactical Air Command underwent hlgh-G training at the USAF School of Aerospace Medicine, the major objectives of the train- important results of that epoch of high-G research was the Ing being to Increase their understanding of G stress and G pro- demonstration that experimental subjects, using the existing tection and to raise their G tolerance. The didactics centered on anti-G equipment (suit. valve), could be trained to tolerate discussion of the G-tlme tolerance curve and demonstration of an sustained high-G loads for prolonged periods-up to +9 G, effective antl-G straining maneuver (AGSM). Exposure to G stress for 45 s-in a conventional (upright) aircraft seat in a on the USAFSAM centrifuge allowed the trainees to determine their Gtolerances and to perfect and practce thelr AGSM. The trainees ' centrifuge (7). The focus of the training given the experi-mean relaxed and straining G tolerances on the gradual-onset mental subjects was on performance of an optimally effec-run (GOR) without anfl-G suit Inflation were 5.2 and 8.3 G, respec- tive anti-G straining maneuver (AGSM). tively; and 41 % of the trainees reached the 9.0-G run limit. All but Impressed by the success of the centrifuge-trained exper- %, two of the trainees completed the 8-G, 45-s rapid-onset run (ROR) imental subjects in raising their G tolerance, Dr. Sidney D