Real-time assessment of global and regional lung ventilation in the anti-gravity straining maneuver using electrical impedance tomography

Anti-gravity straining maneuver (AGSM) helps to reduce the occurrence of gravity-induced visual disturbances and loss of consciousness. An objective assessment of the AGSM is still missing during ground training. This study evaluated the feasibility of using electrical impedance tomography (EIT) to...

Full description

Saved in:
Bibliographic Details
Published in:Computers in biology and medicine 2021-08, Vol.135, p.104592-104592, Article 104592
Main Authors: Yang, Lin, Dai, Meng, Li, Shiqin, Wang, Hang, Cao, Xinsheng, Zhao, Zhanqi
Format: Article
Language:English
Subjects:
Aerospace medicine
Aircraft
Anti-gravity straining maneuver
Antigravity
Assessment
Blood pressure
College students
Electrical impedance
Electrical impedance tomography
Electrodes
Exhalation
Feasibility studies
Gas exchange
Global ventilation
Impedance
Laboratories
Medicine
Physiology
Quality assessment
Radiation
Real time
Regional ventilation
Respiration
Students
Teachers
Tomography
Ventilation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Anti-gravity straining maneuver (AGSM) helps to reduce the occurrence of gravity-induced visual disturbances and loss of consciousness. An objective assessment of the AGSM is still missing during ground training. This study evaluated the feasibility of using electrical impedance tomography (EIT) to assess the performance of AGSM. Eight undergraduates and eight teachers majoring in aerospace medicine were included in the study. An experienced professor from the department of aerospace medicine reviewed the key points of AGSM with each subject. EIT measurement was performed during AGSM. The global and regional ventilation were used to investigate the characteristics of AGSM. The professor and the subjects rated the performance of AGSM according to the maneuver requirements of AGSM (maximum 16 points) before and after reviewing the ventilations from EIT. For global ventilation, the relative depth of gas exchange and duration of exhalation of the teachers were larger than those of the students (p 
ISSN:0010-4825
1879-0534
DOI:10.1016/j.compbiomed.2021.104592