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Title: The validity and reliability of a novel indoor player tracking system for use within wheelchair court sports
Authors: Rhodes, James M.
Mason, Barry S.
Perrat, Bertrand
Smith, Martin J.
Goosey-Tolfrey, Victoria L.
Keywords: Disability sport
Field-based testing
Accuracy
Radio-frequency
Performance analysis
Issue Date: 2014
Publisher: © Taylor & Francis
Citation: RHODES, J. ... et al., 2014. The validity and reliability of a novel indoor player tracking system for use within wheelchair court sports. Journal of sports sciences, 32 (17), pp.1639-1647.
Abstract: The aim of the current study was to investigate the validity and reliability of a radio frequency-based system for accurately tracking athlete movement within wheelchair court sports. Four wheelchair-specific tests were devised to assess the system during (i) static measurements; (ii) incremental fixed speeds; (iii) peak speeds; and (iv) multidirectional movements. During each test, three sampling frequencies (4, 8 and 16 Hz) were compared to a criterion method for distance, mean and peak speeds. Absolute static error remained between 0.19 and 0.32 m across the session. Distance values (test (ii)) showed greatest relative error in 4 Hz tags (1.3%), with significantly lower errors seen in higher frequency tags (<1.0%). Relative peak speed errors of <2.0% (test (iii)) were revealed across all sampling frequencies in relation to the criterion (4.00 ± 0.09 m · s-(1)). Results showed 8 and 16 Hz sampling frequencies displayed the closest-to-criterion values, whilst intra-tag reliability never exceeded 2.0% coefficient of variation (% CV) during peak speed detection. Minimal relative distance errors (<0.2%) were also seen across sampling frequencies (test (iv)). To conclude, the indoor tracking system is deemed an acceptable tool for tracking wheelchair court match play using a tag frequency of 8 or 16 Hz.
Description: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of sports sciences on 23/04/2014, available online: http://dx.doi.org/10.1080/02640414.2014.910608.
Sponsor: The authors would like to acknowledge the financial support from UK Sport, EPSRC and the Peter Harrison Centre for Disability Sport.
Version: Accepted
DOI: 10.1080/02640414.2014.910608
URI: https://dspace.lboro.ac.uk/2134/22651
Publisher Link: http://dx.doi.org/10.1080/02640414.2014.910608
ISSN: 0264-0414
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

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