Validity and interunit reliability of 10 Hz and 15 Hz GPS units for assessing athlete movement demands.

@article{Johnston2014ValidityAI,
  title={Validity and interunit reliability of 10 Hz and 15 Hz GPS units for assessing athlete movement demands.},
  author={Richard J Johnston and Mark Watsford and Stephen J Kelly and Matthew J Pine and Robert W Spurrs},
  journal={Journal of strength and conditioning research},
  year={2014},
  volume={28 6},
  pages={1649-55}
}
The purpose of this study was to assess the validity and interunit reliability of 10 Hz (Catapult) and 15 Hz (GPSports) Global Positioning System (GPS) units and investigate the differences between these units as measures of team sport athlete movement demands. A team sport simulation circuit was completed by 8 trained male participants. The movement demands examined included: total distance covered (TD), average peak speed, and the distance covered, time spent, and the number of efforts… CONTINUE READING
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