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The study aims to evaluate the validity and reliability of GPS units for measuring distance and peak speed in sports.

Validity and Reliability of Global Positioning System Units (STATSports Viper) for Measuring Distance and Peak Speed in Sports

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The study aims to evaluate the validity and reliability of GPS units for measuring distance and peak speed in sports.
Twenty participants aged 18 to 24 years were enrolled.
GPS measurements were compared with a radar gun during 20-m sprints and known circuit distances.
Data analysis involved comparing distance and speed biases across various trials.
Distance biases for the 400-m and 128.5-m circuits were 1.99 ± 1.81% and 2.7 ± 1.2%, respectively.
Peak speed measured by GPS was 26.3 ± 2.4 km·h compared to a criterion of 26.1 ± 2.6 km·h, with a bias of 1.80 ± 1.93%.
GPS did not underestimate distance or peak speed, with errors remaining below 5%.

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Randomized trial assesses GPS accuracy in measuring distance and peak speed in athletes, indicating strong performance.

Beato et al. (2018) studied this question.

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