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dc.contributor.author
 hal.structure.identifier
BERGAMINI, Elena
198221 Laboratory of Locomotor Apparatus Bioengineering [LABLAB]
dc.contributor.author
 hal.structure.identifier
PICERNO, Pietro
198221 Laboratory of Locomotor Apparatus Bioengineering [LABLAB]
dc.contributor.authorNATTA, Françoise
dc.contributor.authorTHOREUX, Patricia
dc.contributor.author
 hal.structure.identifier
CAMOMILLA, Valentina
198221 Laboratory of Locomotor Apparatus Bioengineering [LABLAB]
dc.contributor.author
 hal.structure.identifier
PILLET, Helene
99538 Laboratoire de biomécanique [LBM]
dc.date.accessioned2014
dc.date.available2014
dc.date.issued2012
dc.date.submitted2014
dc.identifier.issn0021-9290
dc.identifier.urihttp://hdl.handle.net/10985/8924
dc.descriptionThis research was supported by a grant of the Universit a Italo-Francese (Call Vinci) awarded to E. Bergamini.
dc.description.abstractThe purpose of this study was to identify consistent features in the signals supplied by a single inertial measurement unit (IMU), or thereof derived, for the identification of foot-strike and foot-off instants of time and for the estimation of stance and stride duration during the maintenance phase of sprint running. Maximal sprint runs were performed on tartan tracks by five amateur and six elite athletes, and durations derived from the IMU data were validated using force platforms and a high-speed video camera, respectively, for the two groups. The IMU was positioned on the lower back trunk (L1 level) of each athlete. The magnitudes of the acceleration and angular velocity vectors measured by the IMU, as well as their wavelet-mediated first and second derivatives were computed, and features related to foot-strike and foot-off events sought. No consistent features were found on the acceleration signal or on its first and second derivatives. Conversely, the foot-strike and foot-off events could be identified from features exhibited by the second derivative of the angular velocity magnitude. An average absolute difference of 0.005 s was found between IMU and reference estimates, for both stance and stride duration and for both amateur and elite athletes. The 95% limits of agreement of this difference were less than 0.025 s. The results proved that a single, trunk-mounted IMU is suitable to estimate stance and stride duration during sprint running, providing the opportunity to collect information in the field, without constraining or limiting athletes’ and coaches’ activities.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectFeature identification
dc.subjectFoot contact detection
dc.subjectInertial sensor
dc.subjectSports
dc.subjectStance and stride duration
dc.titleEstimation of temporal parameters during sprint running using a trunk-mounted inertial measurement unit
dc.identifier.doi10.1016/j.jbiomech.2011.12.020
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Mécanique: Biomécanique
ensam.audienceInternationale
ensam.page1123-1126
ensam.journalJournal of Biomechanics
ensam.volume45
hal.identifierhal-01083834
hal.version1
hal.submission.permittedupdateMetadata
hal.statusaccept


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