Burton R R
Crew Technology Division, U.S. Air Force School of Aerospace Medicine, Brooks Air Force Base, Texas 78235-5301.
Aviat Space Environ Med. 1988 Jul;59(7):601-5.
Relaxed +Gz rapid-onset tolerances were measured on the human-use centrifuge at the USAF School of Aerospace Medicine, using male research subjects with and without inflated anti-G suits. Tolerance at 6 G.s-1 onset rates were 0.2-0.3 G lower than those measured with 1 G.s-1 onset rates, thus suggesting the existence of another relaxed G tolerance measurement called very high onset G. Baroceptor effect was considered the reason for this difference. Delays of a mean of 3.3 s in inflating the anti-G suit did not change relaxed G tolerances at 6 G.s-1 onset rates; however, with a 4.2-s mean delay, light-loss tolerance criteria occurred sooner during the G exposure. Tolerances to 7 G with 6 G.s-1 onset rates, during which the subjects had to perform the anti-G straining maneuver (AGSM), required a mean delay of 2.8 s in six subjects before a noticeable change in light-loss criteria occurred--a mean delay of 2.0 s resulted in no change in light-loss criteria from zero delay control inflation rates. These results clearly indicate that the inflation of the anti-G suit can be delayed by at least 1 s without compromising anti-G suit protection.
在美国空军航空航天医学院的人体离心机上，对穿着和未穿着充气抗荷服的男性研究对象测量了+Gz快速 onset 耐受性。6G.s-1 起始率下的耐受性比 1G.s-1 起始率下测量的耐受性低 0.2 - 0.3G，这表明存在另一种称为非常高起始 G 的松弛 G 耐受性测量方法。压力感受器效应被认为是造成这种差异的原因。抗荷服充气平均延迟 3.3 秒并没有改变 6G.s-1 起始率下的松弛 G 耐受性；然而，平均延迟 4.2 秒时，在 G 暴露期间光损失耐受标准出现得更早。在 6G.s-1 起始率下对 7G 的耐受性测试中，受试者必须执行抗荷紧张动作（AGSM），在六名受试者中，在光损失标准出现明显变化之前，充气平均延迟 2.8 秒——平均延迟 2.0 秒时，与零延迟控制充气率相比，光损失标准没有变化。这些结果清楚地表明，抗荷服的充气可以延迟至少 1 秒而不影响抗荷服的防护效果。
