Balldin U I, Myhre K, Tesch P A, Wilhelmsen U, Andersen H T
Aviat Space Environ Med. 1985 Feb;56(2):120-4.
Methods to increase G tolerance of pilots flying high-performance aircraft are of vital importance. Straining maneuvers to increase G tolerance involve abdominal muscles, and high intra-abdominal pressures (IAP) are recorded during G exposure. This study was carried out to examine the effects of an 11-week abdominal muscle training program on maximal IAP, G tolerance and muscle strength/endurance in 10 fighter pilots. G tolerance was measured in a human centrifuge using simulated aerial combat maneuvers (ACM). The pilots had a higher maximal IAP before training than a control group. G tolerance, maximal IAP, and maximal peak torque of knee extensors were not changed by the training. In contrast, leg muscle endurance increased (p less than 0.01) and ratings of local perceived exertion decreased (p less than 0.01). Static endurance of the knee extensors was positively correlated (p less than 0.05) with G tolerance. It is concluded that the present abdominal training program, employed in experienced fighter pilots, is not sufficient to increase IAP or G tolerance.
提高高性能飞机飞行员G耐力的方法至关重要。通过拉伸动作来提高G耐力涉及腹部肌肉，并且在承受G力时会记录到较高的腹内压（IAP）。本研究旨在检验一项为期11周的腹部肌肉训练计划对10名战斗机飞行员的最大腹内压、G耐力以及肌肉力量/耐力的影响。使用模拟空战机动动作（ACM）在人体离心机中测量G耐力。飞行员在训练前的最大腹内压高于对照组。训练后，G耐力、最大腹内压和膝伸肌的最大峰值扭矩没有变化。相比之下，腿部肌肉耐力增加（p<0.01），局部主观用力评分降低（p<0.01）。膝伸肌的静态耐力与G耐力呈正相关（p<0.05）。得出的结论是，在经验丰富的战斗机飞行员中采用的当前腹部训练计划不足以提高腹内压或G耐力。
