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dc.contributor.authorPadulo, Johnny
dc.contributor.authorIuliano, Enzo
dc.contributor.authorBrisola, Gabriel [UNESP]
dc.contributor.authorIacono, Antonio Dello
dc.contributor.authorZagatto, Alessandro M. [UNESP]
dc.contributor.authorLupo, Corrado
dc.contributor.authorFuglsang, Thomas
dc.contributor.authorArdigò, Luca P.
dc.contributor.authorCular, Drazen
dc.identifier.citationBiology of Sport, v. 36, n. 1, p. 75-80, 2019.
dc.description.abstractThe aim of the investigation was to verify the validity and reliability of a low-end 50-Hz Global Navigation Satellite System receiver (GNSSr) for different soccer-specific run distances and average speed assessments. Six soccer players were assessed on two different days while performing eight different running paths with changes of direction for a final total of 44 runs. During the runs, each participant was equipped with the GNSSr, while the time for each single run was recorded using a photocell gate. Reference vs. receiver assessment correspondences for distance and average speed were evaluated by calculating the standard error of the estimate (SEE), coefficient of variation (CV), and mean bias. Residual vs. predicted value comparison was performed by means of Bland-Altman plots. Finally, calculating the intra-class correlations coefficient (ICC) assessed the test-retest reliability of the measurement. Receiver distance assessment showed an SEE of 0.52 m (0.73%), and mean bias of 0.06 m. Receiver average speed assessment showed an SEE of 0.02 m·s -1 (0.74%) and mean bias of 0.001 m·s -1 . The Bland-Altman plot showed a small difference between the two assessments with the 95% limits of agreement=±1.08 m/0.046 m·s -1 . Receiver distance/speed assessment was found to be reliable, with ICC=0.999. In spite of its low cost, the new low-end GNSSr provides valid and reliable assessments of distance and average speed for young adults performing several standardized running actions of differing lengths within delimited setup spaces.en
dc.relation.ispartofBiology of Sport
dc.subjectAssessment Team sport Running performance Sport technology Wearable device
dc.titleValidity and reliability of a standalone low-end 50-Hz GNSS receiver during runningen
dc.contributor.institutionUniversity of Split
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionWingate Institute
dc.contributor.institutionUniversità degli Studi di Torino
dc.contributor.institutionUniversity of Verona
dc.contributor.institutionUniversity eCampus
dc.description.affiliationFaculty of Kinesiology University of Split
dc.description.affiliationDepartment of Physical Education São Paulo State University
dc.description.affiliationZinman College of Physical Education and Sport Sciences Wingate Institute
dc.description.affiliationLaboratory of Physiology and Sport Performance (LAFIDE) Faculty of Sciences Department of Physical Education Univ Estadual Paulista-UNESP
dc.description.affiliationDepartment of Medical Science Università degli Studi di Torino
dc.description.affiliationSchool of Exercise and Sport Science Department of Neurosciences Biomedicine and Movement Sciences University of Verona
dc.description.affiliationUniversity eCampus, Via Isimbardi, 10
dc.description.affiliationUnespDepartment of Physical Education São Paulo State University
dc.description.affiliationUnespLaboratory of Physiology and Sport Performance (LAFIDE) Faculty of Sciences Department of Physical Education Univ Estadual Paulista-UNESP
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