Assessment of wearable global positioning system units for physical activity research.

  title={Assessment of wearable global positioning system units for physical activity research.},
  author={Kathleen Meghan Wieters and Jun-Hyun Kim and Chanam Lee},
  journal={Journal of physical activity & health},
  volume={9 7},
BACKGROUND Responding to the growing interest in the environmental influences on physical activity, and the concerns about the limitations of self-report data, this study evaluates Global Positioning System (GPS) units for measuring outdoor physical activity. METHODS Four GPS models were selected to test their accuracy related to adherence to an actual route walked, variations based on position of unit on user's body, and variations against a known geodetic point. A qualitative assessment was… CONTINUE READING

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