Stable Coordination Variability in Overground Walking and Running at Preferred and Fixed Speeds

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aut.relation.journalJournal of Applied Biomechanicsen_NZ
aut.researcherWyatt, Hannah
dc.contributor.authorWyatt, Hen_NZ
dc.contributor.authorWeir, Gen_NZ
dc.contributor.authorJewell, Cen_NZ
dc.contributor.authorvan Emmerik, Ren_NZ
dc.contributor.authorHamill, Jen_NZ
dc.date.accessioned2021-10-12T03:07:42Z
dc.date.available2021-10-12T03:07:42Z
dc.date.copyright2020-12-18en_NZ
dc.date.issued2020-12-18en_NZ
dc.description.abstractCoordination variability (CV) is commonly analyzed to understand dynamical qualities of human locomotion. The purpose of this study was to develop guidelines for the number of trials required to inform the calculation of a stable mean lower limb CV during overground locomotion. Three-dimensional lower limb kinematics were captured for 10 recreational runners performing 20 trials each of preferred and fixed speed walking and running. Stance phase CV was calculated for 9 segment and joint couplings using a modified vector coding technique. The number of trials required to achieve a CV mean within 10% of 20 strides average was determined for each coupling and individual. The statistical outputs of mode (walking vs running) and speed (preferred vs fixed) were compared when informed by differing numbers of trials. A minimum of 11 trials were required for stable mean stance phase CV. With fewer than 11 trials, CV was underestimated and led to an oversight of significant differences between mode and speed. Future overground locomotion CV research in healthy populations using a vector coding approach should use 11 trials as a standard minimum. Researchers should be aware of the notable consequences of an insufficient number of trials for overall study findings.
dc.identifier.citationJournal of Applied Biomechanics, 37(4), 299-303. Retrieved Oct 12, 2021, from https://journals.humankinetics.com/view/journals/jab/37/4/article-p299.xml
dc.identifier.doi10.1123/jab.2020-0368
dc.identifier.issn1065-8483en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/14570
dc.publisherHuman Kineticsen_NZ
dc.relation.urihttps://journals.humankinetics.com/view/journals/jab/37/4/article-p299.xml?content=abstract
dc.rights© 2021 Human Kinetics. The authors explicitly reserve the right to post an electronic version of the accepted manuscript (i.e., the version of the manuscript that has been through peer review and accepted by a journal editor for publication) on the authors' own website or website(s) or other electronic repositories controlled by the authors' institution, provided that the electronic version is in PDF or other image capturing format.
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectVector coding; Segment coupling; Joint coupling; Reliability
dc.titleStable Coordination Variability in Overground Walking and Running at Preferred and Fixed Speedsen_NZ
dc.typeJournal Article
pubs.elements-id395759
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Faculty of Health & Environmental Science
pubs.organisational-data/AUT/Faculty of Health & Environmental Science/School of Sport & Recreation
pubs.organisational-data/AUT/Faculty of Health & Environmental Science/School of Sport & Recreation/Sports Performance Research Institute New Zealand
pubs.organisational-data/AUT/Faculty of Health & Environmental Science/School of Sport & Recreation/Sports Performance Research Institute New Zealand/Sports Kinesiology Injury Prevention & Performance Research Group
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