An experimental study on the ergonomics indices of partial pressure suits

Li, Xianxue; Hedge, Alan; Hu, Huimin; Qin, Zhifeng; Zhou, Qianxiang

doi:10.1016/j.apergo.2012.10.003

Cited by 6 publications

(1 citation statement)

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“…Although ground-based experiments could be conducted to simulate the cardiovascular response in high altitude and in space [12][13][14], the quantitative description by a numerical model is preferred to predict the physiological response under special conditions. The numerical modeling method is often employed in cardiovascular system studies [15,16].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and physiological effect of partial pressure suit: Experiment and numerical study

Yang

Zhang²,

Xue

et al. 2017

THC

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Abstract. BACKGROUND: During high-altitude flight, the protection of the pilot is vital. A partial pressure suit may affect human physiology, especially circulatory physiology. OBJECTIVE: The purpose of this study was to investigate how a partial pressure suit works. METHOD: Ten subjects took part in the flight simulation experiments. Counter pressure at the chest, abdomen, thigh and shank were detected, together with physiological parameters such as heart rate (HR), mean arterial pressure (MAP), stroke volume (SV), cardiac output (CO) and total peripheral resistance (TPR). A numerical model was also established to simulate hemo-physiological effects of the partial pressure suit. RESULTS: The experiment's results show the non-uniform counter pressure distribution in different parts of the body. There is a linear, proportional relation between TPR and the pressurizing level. HR and MAP increase along with that of the pressure level. SV and CO decrease with the increase of the pressure level. The numerical model simulated the physiological effect of a partial pressure suit. The results were verified by experiment data. The simulation estimated the change of blood flow with the pressure level. CONCLUSIONS:The numerical model provides a potential way to improve the protection of pilots.

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