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Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance
The validity of a local positioning system (LPS) to measure inter-unit distance was investigated during a team sport movement circuit. Eight recreationally active, female indoor team-sport players completed a circuit, comprising seven types of movements (walk, jog, jump, sprint, 45° change of direct...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374308/ https://www.ncbi.nlm.nih.gov/pubmed/32630274 http://dx.doi.org/10.3390/s20133693 |
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author | Hodder, Ryan W. Ball, Kevin A. Serpiello, Fabio R. |
author_facet | Hodder, Ryan W. Ball, Kevin A. Serpiello, Fabio R. |
author_sort | Hodder, Ryan W. |
collection | PubMed |
description | The validity of a local positioning system (LPS) to measure inter-unit distance was investigated during a team sport movement circuit. Eight recreationally active, female indoor team-sport players completed a circuit, comprising seven types of movements (walk, jog, jump, sprint, 45° change of direction and shuffle), on an indoor court. Participants wore a receiver tag (ClearSky T6, Catapult Sports) and seven reflective markers, to allow for a comparison with the reference system (©Vicon Motion Systems, Oxford Metrics, UK). Inter-unit distance was collected for each combination of participants. Validity was assessed via root mean square error, mean bias and percentage of variance accounted for, both as an overall dataset and split into distance bands. The results presented a mean root mean square error of 0.20 ± 0.05 m, and mean bias detected an overestimation for all distance bands. The LPS shows acceptable accuracy for measuring inter-unit distance, opening up opportunities to utilise player tracking for tactical variables indoors. |
format | Online Article Text |
id | pubmed-7374308 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-73743082020-08-06 Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance Hodder, Ryan W. Ball, Kevin A. Serpiello, Fabio R. Sensors (Basel) Letter The validity of a local positioning system (LPS) to measure inter-unit distance was investigated during a team sport movement circuit. Eight recreationally active, female indoor team-sport players completed a circuit, comprising seven types of movements (walk, jog, jump, sprint, 45° change of direction and shuffle), on an indoor court. Participants wore a receiver tag (ClearSky T6, Catapult Sports) and seven reflective markers, to allow for a comparison with the reference system (©Vicon Motion Systems, Oxford Metrics, UK). Inter-unit distance was collected for each combination of participants. Validity was assessed via root mean square error, mean bias and percentage of variance accounted for, both as an overall dataset and split into distance bands. The results presented a mean root mean square error of 0.20 ± 0.05 m, and mean bias detected an overestimation for all distance bands. The LPS shows acceptable accuracy for measuring inter-unit distance, opening up opportunities to utilise player tracking for tactical variables indoors. MDPI 2020-07-01 /pmc/articles/PMC7374308/ /pubmed/32630274 http://dx.doi.org/10.3390/s20133693 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Letter Hodder, Ryan W. Ball, Kevin A. Serpiello, Fabio R. Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance |
title | Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance |
title_full | Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance |
title_fullStr | Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance |
title_full_unstemmed | Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance |
title_short | Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance |
title_sort | criterion validity of catapult clearsky t6 local positioning system for measuring inter-unit distance |
topic | Letter |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374308/ https://www.ncbi.nlm.nih.gov/pubmed/32630274 http://dx.doi.org/10.3390/s20133693 |
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