Balldin U I, Kuronen P, Rusko H, Svensson E
Division of Aviation Medicine, National Defence Research Establishment, Sweden.
Aviat Space Environ Med. 1994 Mar;65(3):199-203.
Ratings of perceived exertion (RPE) were registered at submaximal levels in G endurance tests of a combined strength and endurance training program in 17 pilots. After 12 months of physical training, the endurance G tolerance (time to exhaustion during simulated aerial combat maneuver), increased by a mean of 40% (p < 0.001), while the mean RPE at 5 min submaximal G exposure decreased by 1.2 units (p < 0.02). Following 12 months of physical training, a significant relationship was observed between the improvement of the endurance G tolerance and the decrease of the RPE at 5 min (p = 0.05). Mean SaO2 at 5 min increased from 84 to 90% (p < 0.01) after training, while heart rate responses to G stress did not change. It is concluded that mean RPE and, to some extent, mean SaO2 during submaximal G exposures may be used as indicators of shifts in endurance G tolerance. The procedure may reduce the need for exhaustive G tolerance tests with associated risks and discomfort.
在17名飞行员的一项综合力量与耐力训练计划的耐力G测试中，记录了次最大负荷水平下的主观用力程度（RPE）。经过12个月的体能训练，耐力G耐受性（模拟空战机动中的疲劳时间）平均提高了40%（p < 0.001），而在次最大负荷G暴露5分钟时的平均RPE下降了1.2个单位（p < 0.02）。经过12个月的体能训练后，观察到耐力G耐受性的改善与5分钟时RPE的下降之间存在显著关系（p = 0.05）。训练后，5分钟时的平均血氧饱和度（SaO2）从84%提高到90%（p < 0.01），而心率对G应激的反应没有变化。得出的结论是，在次最大负荷G暴露期间，平均RPE以及在一定程度上平均SaO2可作为耐力G耐受性变化的指标。该程序可能会减少进行有相关风险和不适的极限G耐受性测试的必要性。
