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Validity and Reliability of a Commercial Fitness Watch for Measuring Running Dynamics / Douglas Adams in Journal of Orthopaedic & Sports Physical Therapy, vol. 46, 6 (juin 2016)
[article]
in Journal of Orthopaedic & Sports Physical Therapy > vol. 46, 6 (juin 2016) . - p. 471-476
Titre : Validity and Reliability of a Commercial Fitness Watch for Measuring Running Dynamics Type de document : article de périodique Auteurs : Douglas Adams ; [et al.] Année de publication : 2016 Article en page(s) : p. 471-476 Langues : Anglais (eng) Descripteurs (mots clés) : [Thésaurus Mesh]:C:Course à pied:Course à pied / physiologie
[Thésaurus Mesh]:M:Médecine du sport:Médecine du sport / statistiques et données numériques
[Thésaurus Mesh]Course à piedMots-clés : cadence ground contact time running retraining vertical oscillation Résumé :
Study Design Validity and reliability study.
Background
Providing feedback on running mechanics is a common intervention to decrease the risk of injury or to restore running after an injury. Commercially available devices are able to measure running dynamics, such as cadence, ground contact time (GCT), and vertical oscillation (VO), but there is limited evidence on the validity and reliability of these measures.
Objective
To determine the validity and reliability of measures of cadence, GCT, and VO with a fitness watch compared to a motion-analysis system.
Methods
Twenty runners ran in 3 conditions: (1) baseline (self-selected speed and cadence), (2) higher cadence, and (3) decreased vertical motion (minimal oscillation). Ten runners also performed an additional baseline running session to measure intrasession reliability. For each condition, the average cadence, GCT, and VO were collected from a watch and from a motion-capture system. Intraclass correlation coefficients (ICCs) were used to assess validity between devices. An analysis of variance with 2 repeated measures was used to determine the ability of the watch and motion analysis to detect change in running dynamics.
Results
The ICCs between the 2 measuring systems were 0.931, 0.963, and 0.749 for cadence, VO, and GCT, respectively (P<.01). The minimal detectable changes at the 95% confidence interval for cadence, VO, and GCT were 2.53 steps per minute, 0.45 cm, and 0.01 seconds, respectively, for the watch. There were no interaction effects, but there was a main effect for condition; both devices detected changes in running dynamics.
Conclusion
The watch is a valid and reliable tool for detecting changes in cadence, VO, and GCTPermalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité J Périodique Erasme - périodiques Périodiques Disponible