Correlations between postural control ability and cumulative fatigue under stress:an experimental study
JIANG Wei
LI Chuantao
CHEN Zhiyuan
CHEN Ruiyang
YAO Yongjie
YANG Jishun
Abstract：Objective To study the relationships between postural control ability and cumulative fatigue under stress and to explore rapid methods for assessing fatigue.Methods Fifteen undergraduates from Shanghai University of Science and Technology who participated in the National Undergraduate Electronics Design Competition were enrolled to evaluate their postural control capabilities under fatigue and alertness.Participants were required to complete questionnaires assessing subjective fatigue and sleep duration and undergo dynamic balance tests and static balance tests on a balance testing device under both open-eye and closed-eye conditions.Statistical analysis was conducted using the Wilcoxon Signed-Rank Test.Results Data from subjective questionnaires and on sleep duration revealed a continuous increase in fatigue levels among subjects throughout the competition,indicating the cumulative nature of fatigue.The results of the balance ability assessments revealed statistically significant differences in such key metrics as the spiral trajectory accuracy(Z=2.329,P=0.020),total length of open-eye trajectory(Z=2.272,P=0.023),total length of closed-eye trajectory(Z=2.045,P=0.041),and closed-eye envelope area(Z=2.329,P=0.020).Conclusion There is a significant correlation between postural control ability and fatigue.The related metrics have demonstrated their utility as effective indicators for rapid assessment of fatigue status.
Keywords：Cumulative fatigueSleep deprivationPostural controlFatigue measurement
Publication Date：2025-02-24
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 20-23 )