Fatigue evaluation of long-term simulated flight based on heart rate variability
CAO Zhengtao
XIONG Jinle
LIANG Xueyu
WANG Cong
LI Jingjie
YONG Wei
Abstract：Objective To analyze the status of pilots performing night flight tasks in long-term simulated flights,and preliminarily evaluate the status and possible warning points of subjects performing night flight tasks.Methods Eight healthy males were selected to perform the tasks of the captain and deputy captain,with two people in a group.A total of 4 groups carried out the simulated 48 h continuous flight tasks,in which the captain and deputy captain conducted a shift mode,with 45 min of sleep and 45 min of recovery every 4 h of flight.Based on the electrocardiogram data collected in the simulated flight task,the fatigue degree of the test subjects was analyzed by heart rate variability(HRV)method.Results The sections whose accuracy of HRV indicators was more than 90％to distinguish fatigue from non-fatigue state were mainly distributed at night,and the fatigue degree of pilots in the first half of the night was greater than that in the second half of the night.The fatigue feeling of pilots on the second day of the experiment was more obvious than that on the first day.Conclusion HRV analysis reflects the changes of the autonomic nervous system in different states,and reliably distinguishes the fatigue and non-fatigue status of pilots in simulated flight experiment by combining relevant classification models.
Keywords：fatiguepilotsubjective fatigue scaleheart rate variability analysis
Publication Date：2024-02-28
Online Publishing Date：2026-08-26(First online date of this platform, not the publication date of the document)
Pages：7( 180-186 )