中华航空航天医学杂志
中華航空航天醫學雜誌
중화항공항천의학잡지
CHINESE JOURNAL OF AEROSPACE MEDICINE
2009年
1期
23-27
,共5页
金朝%刘桂玲%耿喜臣%李宝辉%徐艳%卫晓阳%王海霞%颜桂定%张立辉%李茜%王红%孙喜庆
金朝%劉桂玲%耿喜臣%李寶輝%徐豔%衛曉暘%王海霞%顏桂定%張立輝%李茜%王紅%孫喜慶
금조%류계령%경희신%리보휘%서염%위효양%왕해하%안계정%장립휘%리천%왕홍%손희경
加速度%下肢%用力%测力法
加速度%下肢%用力%測力法
가속도%하지%용력%측역법
Acceleration%Lower extremity%Exertion%Ergometry
目的 观察一套安装在载人离心机上的蹬力测量系统使用效果. 方法 蹬力测量系统包括蹬力的传导及信号处理两个部分.蹬力传导部分包括左、右两套带气囊的踏板和1个充气组件.蹬力信号处理部分由5502型压力传感器、5B系列隔离信号调理模块、DaqBoard/2005TMA/D板及DASYLab 5.6 软件等组成.将该系统安装在AMST-HC-4E型载人离心机上,进行了以9名歼击机飞行员为受试者的3组+Gz暴露试验. 结果 不同载荷时的气囊内压力差异显著(F=11.63,P=0.000).气囊内压力与载荷呈正相关,其线性回归方程为:气囊内压力P=4.5×载荷+4.2(r=0.915,P<0.01).根据气囊内压力曲线形态,可判断飞行员在作抗荷动作时的下肢用力方式. 结论 该测量系统能够实时监测加速度作用时受试者的蹬力变化.在加速度耐力检查及离心机训练时可利用该系统监测受试者的下肢用力情况.
目的 觀察一套安裝在載人離心機上的蹬力測量繫統使用效果. 方法 蹬力測量繫統包括蹬力的傳導及信號處理兩箇部分.蹬力傳導部分包括左、右兩套帶氣囊的踏闆和1箇充氣組件.蹬力信號處理部分由5502型壓力傳感器、5B繫列隔離信號調理模塊、DaqBoard/2005TMA/D闆及DASYLab 5.6 軟件等組成.將該繫統安裝在AMST-HC-4E型載人離心機上,進行瞭以9名殲擊機飛行員為受試者的3組+Gz暴露試驗. 結果 不同載荷時的氣囊內壓力差異顯著(F=11.63,P=0.000).氣囊內壓力與載荷呈正相關,其線性迴歸方程為:氣囊內壓力P=4.5×載荷+4.2(r=0.915,P<0.01).根據氣囊內壓力麯線形態,可判斷飛行員在作抗荷動作時的下肢用力方式. 結論 該測量繫統能夠實時鑑測加速度作用時受試者的蹬力變化.在加速度耐力檢查及離心機訓練時可利用該繫統鑑測受試者的下肢用力情況.
목적 관찰일투안장재재인리심궤상적등력측량계통사용효과. 방법 등력측량계통포괄등력적전도급신호처리량개부분.등력전도부분포괄좌、우량투대기낭적답판화1개충기조건.등력신호처리부분유5502형압력전감기、5B계렬격리신호조리모괴、DaqBoard/2005TMA/D판급DASYLab 5.6 연건등조성.장해계통안장재AMST-HC-4E형재인리심궤상,진행료이9명섬격궤비행원위수시자적3조+Gz폭로시험. 결과 불동재하시적기낭내압력차이현저(F=11.63,P=0.000).기낭내압력여재하정정상관,기선성회귀방정위:기낭내압력P=4.5×재하+4.2(r=0.915,P<0.01).근거기낭내압력곡선형태,가판단비행원재작항하동작시적하지용력방식. 결론 해측량계통능구실시감측가속도작용시수시자적등력변화.재가속도내력검사급리심궤훈련시가이용해계통감측수시자적하지용력정황.
Objective To evaluate the system for continuously measuring forces exerted on pedals on human centrifuge. Methods The measurement system consisted of force transmitting and signal processing units. The force transmitting unit included two pedals with air bladders and an inflating assembly. The signal processing unit was composed of Model 5502 pressure transducer, 5B series isolated signal regulation modules, DaqBoard/2005TM AID board and DASYLab 5. 6 data acquisition and analysis software. The system was evaluated on AMST-HC-4E human centrifuge by nine pilots. Results There was significant difference in the air bladder pressure (ACP) that reflected the force exerted on pedals between different +Gz levels and the ACP was also significantly correlated to + Gz (r=0.915, P< 0. 01), The relation between ACP and +Gz value could be concluded by a linear regression equation: ACP= 4.5 × Gz +4.2. The measured pressure patterns in bladder could be useful for judging how subject distribute his leg strength in performing anti-G maneuver (AGSM). Conclusions The system can measure subject's leg strength during his +Gz exposure. It could be useful in pilot' s + Gz tolerance evaluation and centrifuge training.
