摘要
目的建立HP动作在抗荷动作训练器上的训练方法,为飞行员在地面进行抗荷动作训练提供技术支持。方法采用抗荷动作训练器训练HP动作,观察12名志愿者在三级训练负荷水平条件下进行HP动作训练时的血压、心率(HR)、心功能等指标的变化。结果随训练负荷水平的加大,收缩压(SBP)、舒张压(DBP)、平均动脉压(MAP)及HR显著升高(P<0.01);每搏量(SV)呈下降趋势,心输出量(CO)有所降低,但SV、CO与对照相比差异不显著;总外周阻力(TPR)显著增加(P<0.05或P<0.01)。依据公式计算+Gz耐力,在三级训练负荷水平条件下,志愿者做HP动作时的+Gz耐力分别为(6.18±0.74)G、(7.32±1.03)G及(9.05±0.71)G。HP动作在抗荷动作训练器上的训练合格标准可定为依据公式计算+Gz耐力提高5 G为合格。结论 HP动作在抗荷动作训练器上训练方法和过程贴近飞行实际,三级负荷水平训练模式合理可行。
Objective TO provide technological support for the ground anti-G training, a training method of HP maneuver on anti-G trainer was established. Methods HP maneuver training at three different physical load levels was carried out in 12 subjects on anti-G trainer. The changes of blood pressure （BP）, heart rate （HR） and cardiovascular function were observed. Results With the increment of physical load level, systolic blood pressure （SBP）, diastolic blood pressure （DBP）, mean arterial pressure （MAP）, and HR increased signifi- cantly （P 〈0.01 ）. Stroke volume （SV） and cardiac output （CO） trended to decrease, but not significantly as compared with those of the control. Total peripheral resistance （TPR） increased significantly （P 〈 0.05 or P 〈 0.01 ）. The calculated ＋ Gz tolerances when performing HP maneuver at three physical load levels were （6.18 ± 0.74） G, （7.32±1.03 ） G and （9.05 ± 0.71 ） G respectively （P 〈 0.01 ）. The eligibility for HP maneuver training on anti-G trainer might be assessed by a ＋ Gz tolerance elevation of 5 G. Conclusion The methods and procedures of the training are close to real flight, and the three-level training pattern is scientific and feasible.
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2013年第5期363-366,共4页
Space Medicine & Medical Engineering
基金
空军后勤部计划课题(BKJ10C020)
