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Mechanical and physiological effect of partial pressure suit: Experiment and numerical study.
Yang, Tao; Ding, Li; Zhang, Haibo; Xue, Lihao; Zhang, Wei; Chen, Lianyun; Xiao, Huajun; Qiao, Huiting.
Afiliación
  • Yang T; School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
  • Ding L; Inner Mongolia People's Hospital, Hohhot, Inner Mongolia, China.
  • Zhang H; School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
  • Xue L; Aerospace Life-Support Institute Co., Ltd, Xiangyang, Hubei, China.
  • Zhang W; School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
  • Chen L; Aerospace Life-Support Institute Co., Ltd, Xiangyang, Hubei, China.
  • Xiao H; Aerospace Life-Support Institute Co., Ltd, Xiangyang, Hubei, China.
  • Qiao H; Institute of Aviation Medicine, Air Force, Beijing, China.
Technol Health Care ; 25(S1): 35-44, 2017 Jul 20.
Article en En | MEDLINE | ID: mdl-28582890
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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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Presión Parcial / Trajes Gravitatorios Límite: Adult / Humans / Male Idioma: En Revista: Technol Health Care Asunto de la revista: ENGENHARIA BIOMEDICA / SERVICOS DE SAUDE Año: 2017 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Presión Parcial / Trajes Gravitatorios Límite: Adult / Humans / Male Idioma: En Revista: Technol Health Care Asunto de la revista: ENGENHARIA BIOMEDICA / SERVICOS DE SAUDE Año: 2017 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos