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  • Title: [Changes in heart rate and blood pressure under push pull maneuver simulated on a tilt table].
    Author: Chen TX, Wang L, Sun SZ, Wang LJ, Lei Z, Jiang SQ.
    Journal: Space Med Med Eng (Beijing); 2002 Aug; 15(4):307-8. PubMed ID: 12425341.
    Abstract:
    Objective. Push-pull maneuver (PPM) was simulated using a tilt table to assess detailed cardiovascular responses and the simulation model. Method. Ten healthy fighter pilots were exposed to 3 times transition of body position of head-up tilt (HUT) for 1 min-->head-down tilt (HDT) for 10 s, 15 s and 20 s respectively-->HUT for 1 min in randomized sequences. The rate of tilt table rotation was 45 degrees /s. Heart-level arterial blood pressure was monitored with 4 s intervals, and HR was continuously monitored by ECG. Result. HR and BP fell significantly during HDT compared with those during HUT; upon subsequent HUT, HR and BP were significantly less than those during previous HUT, except BP at 11-15 s. Conclusion. Cardiovascular responses to PPM can be simulated with a tilt table. It is suggested that the tilt table model is valid in simulating the PPM.
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