CAJ | 학술논문

目的通过检测呼吸肌和双下肢肌肉力量,使用经验公式估算+Gz耐力,对比分析男、女飞行学员之间的抗荷耐力差异,探讨使用抗缺氧能力检测仪进行抗荷耐力地面测试的方法. 方法检测了32名女飞行学员和30名男飞行学员的心-眼距、最大呼气压力、最大吸气压力、双下肢蹬力,以及平静时和做HP、PHP动作时的收缩压;估算了受试者使用抗荷装备做抗荷动作时的+Gz耐力. 结果男飞行学员的心-眼距、最大呼气压力、最大吸气压力和双下肢蹬力均显著大于女飞行学员(t=4.852～6.762,P＜0.01).男飞行学员做PHP动作时的+Gz耐力大于女飞行学员(t=2.226,P=0.034),但男、女飞行学员做HP动作时的G耐力差异无统计学意义(P=0.185). 结论 ①女飞行学员的呼吸肌和双下肢肌肉力量素质不如男飞行学员.②与男飞行学员相比,女飞行学员心-眼距小,做HP抗荷动作时的收缩压低,这可能是男、女飞行学员穿抗荷服、做HP抗荷动作时G耐力相差不显著的主要原因.女飞行学员呼吸肌力量小,不适应抗荷正压呼吸,因此在使用抗荷正压呼吸并做PHP动作的耐力比男飞行学员低.③做抗荷动作时血压的测量方法有待继续改进,以进一步提高测量成功率和准确率.
목적 통과검측호흡기화쌍하지기육역량,사용경험공식고산+Gz내력,대비분석남、녀비행학원지간적항하내력차이,탐토사용항결양능력검측의진행항하내력지면측시적방법. 방법 검측료32명녀비행학원화30명남비행학원적심-안거、최대호기압력、최대흡기압력、쌍하지등력,이급평정시화주HP、PHP동작시적수축압;고산료수시자사용항하장비주항하동작시적+Gz내력. 결과 남비행학원적심-안거、최대호기압력、최대흡기압력화쌍하지등력균현저대우녀비행학원(t=4.852～6.762,P＜0.01).남비행학원주PHP동작시적+Gz내력대우녀비행학원(t=2.226,P=0.034),단남、녀비행학원주HP동작시적G내력차이무통계학의의(P=0.185). 결론 ①녀비행학원적호흡기화쌍하지기육역량소질불여남비행학원.②여남비행학원상비,녀비행학원심-안거소,주HP항하동작시적수축압저,저가능시남、녀비행학원천항하복、주HP항하동작시G내력상차불현저적주요원인.녀비행학원호흡기역량소,불괄응항하정압호흡,인차재사용항하정압호흡병주PHP동작적내력비남비행학원저.③주항하동작시혈압적측량방법유대계속개진,이진일보제고측량성공솔화준학솔.
Objective To investigate the difference of + Gz tolerance between male and female student pilots by testing the forces developed by respiratory and leg muscles,and to verify the G tolerance test by means of anti-G training apparatus. Methods Thirty-two female and thirty male student pilots volunteered for this study.The vertical heart-to-eye distance,maximum expiration pressure,maximum inspiration pressure and forces developed by leg muscles,systolic blood pressure when performing HP and PHP maneuver were measured.The + Gz tolerance was reckoned by an empirical formula when volunteers riding on anti-G training apparatus with the performance of straining maneuver and anti-G suit. Results The vertical heart-to-eye distance,maximum expiration pressure,maximum inspiration pressure and forces developed by leg muscles of male student pilots were significantly greater than those of the females (t=4.852～6.762,P＜0.01).The G tolerance of male students in performing PHP maneuver was greater than that of the females (t=2.226,P=0.034).There was no significant difference in G tolerance when performing HP maneuver between female and male student pilots (P =0.185). Conclusion ① The respiratory and leg muscles of female student pilots are not as strong as male student pilots'.② Female student pilots may beneficially gain G tolerance due to their shorter heart-to-eye distance,but they could reach relative lower systolic blood pressure when performing HP maneuver.Such resulted effects maybe the important reason of causing female' s inapparent G tolerance improvement comparing to the male' s.Because of their weaker respiratory muscles,the female students do not accommodate themselves to PBG (positive pressure breathing for G) and show poorer G tolerance as they performing PHP maneuver with PBG.③ The blood pressure measurement when performing AGSM (anti-G straining maneuver) need to be improved for getting better success rate and accurateness.