Conclusion DCG could be used to evaluate the changes of cardiac electric activity during the whole parabolic flight.
2
方法记录1 3名被试者在失重飞机飞行前、中、后的动态心电图（DCG）。
Method Dynamic electrocardiogram (DCG, CM 1 and CM 5 bipolar leads) were recorded in 13 pilots before, during and after parabolic flights.
3
为了不上太空而体验失重，飞机进行了“过山车”式的俯冲，在一小时的飞行期间，迅速爬升和下降。
To recreate the weightless experience without going into space, the plane executed parabolic flight maneuvers, climbing sharply and descending several times during the one-hour flight.
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