Show simple item record

dc.contributor.authorGarofolini, Alessandro
dc.contributor.authorTaylor, Simon
dc.contributor.authorLepine, Julien
dc.date.accessioned2018-12-13T00:30:38Z
dc.date.available2018-12-13T00:30:38Z
dc.date.issued2019-01-03
dc.identifier.issn0021-9290
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286773
dc.description.abstractThe dynamic properties of instrumented treadmills influence the force measurement of the embedded force platform. We investigated these properties using a frequency response function, which evaluates the ratio between the measured and applied forces in the frequency domain. For comparison, the procedure was also performed on the gold-standard ground-embedded force platform. A predictive model of the systematic error of both types of force platform was then developed and tested against different input signals that represent three types of running patterns. Results show that the treadmill structure distorts the measured force signal. We then modified this structure with a simple stiffening frame in an attempt to reduce measurement error. Consequently, the overall absolute error was reduced (-22%), and the error in force-derived metrics was also sufficiently reduced: -68% for average loading rate error and -80% for impact peak error. Our procedure shows how to measure, predict, and reduce systematic dynamic error associated with treadmill-installed force platforms. We suggest this procedure should be implemented to appraise data quality, and frequency response function values should be included in research reports.
dc.format.mediumPrint-Electronic
dc.languageeng
dc.publisherElsevier BV
dc.subjectHumans
dc.subjectExercise Test
dc.subjectRunning
dc.subjectKinetics
dc.subjectMechanical Phenomena
dc.subjectBiomechanical Phenomena
dc.subjectGait Analysis
dc.titleEvaluating dynamic error of a treadmill and the effect on measured kinetic gait parameters: Implications and possible solutions.
dc.typeArticle
prism.endingPage163
prism.publicationDate2019
prism.publicationNameJ Biomech
prism.startingPage156
prism.volume82
dc.identifier.doi10.17863/CAM.34080
dcterms.dateAccepted2018-10-20
rioxxterms.versionofrecord10.1016/j.jbiomech.2018.10.025
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2019-01
dc.contributor.orcidLepine, Julien [0000-0003-3682-846X]
dc.identifier.eissn1873-2380
rioxxterms.typeJournal Article/Review
cam.issuedOnline2018-10-27
rioxxterms.freetoread.startdate2019-10-27


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record