Validity and reliability of 10-Hz global positioning system to assess in-line movement and change of direction The use of GPS is very common in sports. The question arises, however, how reliable these devices are.We have now checked the reliability of a GPS system with directional changes in runners and footballers.
It showed that the investigated device measures very reliable. The work can be found under https://pubmed.ncbi.nlm.nih.gov/29599725/