Accuracy of a Low-Cost GPS for Studying Walking
Author Information
Author(s): Noury-Desvaux Bénédicte, Abraham Pierre, Mahé Guillaume, Sauvaget Thomas, Leftheriotis Georges, Le Faucheur Alexis
Primary Institution: Institute of Physical Education and Sports Sciences (IFEPSA), UCO, Les Ponts de Cé, France
Hypothesis
The DG100 GPS data logger will accurately detect walking and resting bouts and estimate walking distances and speeds.
Conclusion
The DG100 produces acceptable accuracy in detecting walking and resting bouts as well as estimating distances and speeds during walking.
Supporting Evidence
- The DG100 detected walking and resting bouts with 92.4% accuracy.
- The accuracy of the DG100 was significantly higher than that of the GPS60.
- The study involved 15 healthy subjects performing various walking protocols.
Takeaway
The DG100 GPS is a small and cheap device that can help measure how well people walk outside, which is important for health studies.
Methodology
Healthy subjects performed two experiments with prescribed outdoor walking protocols to test the accuracy of the DG100 GPS.
Limitations
The inter- and intra-DG100 variability should be studied before confirming its use in health studies.
Participant Demographics
15 healthy subjects (6 males, 9 females; average age 24 years)
Statistical Information
P-Value
p<0.001
Confidence Interval
[90.6%–94.3%]
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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