Gait variability predicts post-fatigue obstacle course performance among military cadets: An exploratory study

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dc.contributor.authorUlman, Sophiaen
dc.contributor.authorSrinivasan, Divyaen
dc.contributor.authorNussbaum, Maury A.en
dc.date.accessioned2025-04-15T14:29:01Zen
dc.date.available2025-04-15T14:29:01Zen
dc.date.issued2025-03-12en
dc.description.abstractWe explored the extent to which pre-fatigue gait variability during load carriage is associated with the ability of an individual to perform an obstacle course post-fatigue. Twenty-four military cadets were monitored during treadmill gait and completed an obstacle course before and after a full-body fatigue protocol. Gait variability measures were determined from spatiotemporal stride characteristics, joint angle trajectories, and inter-joint coordination. These measures were then used in multiple linear regression models to predict three measures of post-fatigue performance (i.e., hurdle completion time, maximum jump height, and maximum jump distance). Measures of joint kinematic variability predicted 73–89% of the variance in post-fatigue performance. Specifically, the significant predictors were sagittal plane variability of 1) hip angle and hip-knee coordination during swing phase; and 2) knee-ankle coordination during both stance and swing phase. Measures of joint kinematic variability obtained from gait thus appear relevant for predicting individual differences in adapting to fatigue, and such measures could aid in predicting post-fatigue performance in diverse dynamic tasks.en
dc.description.versionAccepted versionen
dc.format.extent8 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN 104504 (Article number)en
dc.identifier.doihttps://doi.org/10.1016/j.apergo.2025.104504en
dc.identifier.eissn1872-9126en
dc.identifier.issn0003-6870en
dc.identifier.orcidNussbaum, Maury [0000-0002-1887-8431]en
dc.identifier.otherS0003-6870(25)00040-7 (PII)en
dc.identifier.pmid40081294en
dc.identifier.urihttps://hdl.handle.net/10919/125193en
dc.identifier.volume126en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/40081294en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMotor variabilityen
dc.subjectInter-joint coordinationen
dc.subjectAdaptabilityen
dc.titleGait variability predicts post-fatigue obstacle course performance among military cadets: An exploratory studyen
dc.title.serialApplied Ergonomicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
dcterms.dateAccepted2025-03-07en
pubs.organisational-groupVirginia Techen
pubs.organisational-groupVirginia Tech/Engineeringen
pubs.organisational-groupVirginia Tech/Engineering/Industrial and Systems Engineeringen
pubs.organisational-groupVirginia Tech/Faculty of Health Sciencesen
pubs.organisational-groupVirginia Tech/All T&R Facultyen
pubs.organisational-groupVirginia Tech/Engineering/COE T&R Facultyen

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