The comparison of Holux and Qstarz GPS receivers in free living conditions: Dynamic accuracy in different active transport modes

Michal Vorlicek, Tom Stewart, Jan Dygryn, Lukas Rubin, Josef Mitas, Jasper Schipperijn

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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Resumé

Background: Physical activity (PA) is one of the major factors influencing human health. An important group of determinants are elements forming the built environment. For a proper understanding of relationships between the built environment and PA, we need to measure PA in space. Objective: This study aims to verify the accuracy of the Holux RCV-3000 GPS logger, which has not yet been validated in relation with PA. Methods: Two GPS receivers (Holux RCV-3000 and already validated Qstarz BT-Q1000XT) were tested during walking, running and cycling. A total of 1,908 GPS points were recorded by each device. For each trip, we calculated the percentage of points that fell within 1, 2.5, 5, and 10 m buffers, as well as the mean and median error. Results: Our results showed that 53.1% of all Holux and 45.1% of Qstarz GPS points fell within 2.5 m of the expected location, 90% (Holux) and 80% (Qstarz) fell within 10 m and the median error was 2.33 m and 3.15 m, respectively. Conclusions: The dynamic spatial accuracy of the tested Holux RCV-3000 was better than more expensive Qstarz device and can be considered as a valid instrument for assessing the spatial location of PA in future work.
OriginalsprogEngelsk
TidsskriftActa Gymnica
Vol/bind49
Udgave nummer3
Sider (fra-til)109-114
ISSN2336-4912
DOI
StatusUdgivet - 22. sep. 2019

Fingeraftryk

Equipment and Supplies
Health

Citer dette

Vorlicek, Michal ; Stewart, Tom ; Dygryn, Jan ; Rubin, Lukas ; Mitas, Josef ; Schipperijn, Jasper. / The comparison of Holux and Qstarz GPS receivers in free living conditions: Dynamic accuracy in different active transport modes. I: Acta Gymnica. 2019 ; Bind 49, Nr. 3. s. 109-114.
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abstract = "Background: Physical activity (PA) is one of the major factors influencing human health. An important group of determinants are elements forming the built environment. For a proper understanding of relationships between the built environment and PA, we need to measure PA in space. Objective: This study aims to verify the accuracy of the Holux RCV-3000 GPS logger, which has not yet been validated in relation with PA. Methods: Two GPS receivers (Holux RCV-3000 and already validated Qstarz BT-Q1000XT) were tested during walking, running and cycling. A total of 1,908 GPS points were recorded by each device. For each trip, we calculated the percentage of points that fell within 1, 2.5, 5, and 10 m buffers, as well as the mean and median error. Results: Our results showed that 53.1{\%} of all Holux and 45.1{\%} of Qstarz GPS points fell within 2.5 m of the expected location, 90{\%} (Holux) and 80{\%} (Qstarz) fell within 10 m and the median error was 2.33 m and 3.15 m, respectively. Conclusions: The dynamic spatial accuracy of the tested Holux RCV-3000 was better than more expensive Qstarz device and can be considered as a valid instrument for assessing the spatial location of PA in future work.",
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The comparison of Holux and Qstarz GPS receivers in free living conditions: Dynamic accuracy in different active transport modes. / Vorlicek, Michal; Stewart, Tom; Dygryn, Jan; Rubin, Lukas; Mitas, Josef; Schipperijn, Jasper.

I: Acta Gymnica, Bind 49, Nr. 3, 22.09.2019, s. 109-114.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - The comparison of Holux and Qstarz GPS receivers in free living conditions: Dynamic accuracy in different active transport modes

AU - Vorlicek, Michal

AU - Stewart, Tom

AU - Dygryn, Jan

AU - Rubin, Lukas

AU - Mitas, Josef

AU - Schipperijn, Jasper

PY - 2019/9/22

Y1 - 2019/9/22

N2 - Background: Physical activity (PA) is one of the major factors influencing human health. An important group of determinants are elements forming the built environment. For a proper understanding of relationships between the built environment and PA, we need to measure PA in space. Objective: This study aims to verify the accuracy of the Holux RCV-3000 GPS logger, which has not yet been validated in relation with PA. Methods: Two GPS receivers (Holux RCV-3000 and already validated Qstarz BT-Q1000XT) were tested during walking, running and cycling. A total of 1,908 GPS points were recorded by each device. For each trip, we calculated the percentage of points that fell within 1, 2.5, 5, and 10 m buffers, as well as the mean and median error. Results: Our results showed that 53.1% of all Holux and 45.1% of Qstarz GPS points fell within 2.5 m of the expected location, 90% (Holux) and 80% (Qstarz) fell within 10 m and the median error was 2.33 m and 3.15 m, respectively. Conclusions: The dynamic spatial accuracy of the tested Holux RCV-3000 was better than more expensive Qstarz device and can be considered as a valid instrument for assessing the spatial location of PA in future work.

AB - Background: Physical activity (PA) is one of the major factors influencing human health. An important group of determinants are elements forming the built environment. For a proper understanding of relationships between the built environment and PA, we need to measure PA in space. Objective: This study aims to verify the accuracy of the Holux RCV-3000 GPS logger, which has not yet been validated in relation with PA. Methods: Two GPS receivers (Holux RCV-3000 and already validated Qstarz BT-Q1000XT) were tested during walking, running and cycling. A total of 1,908 GPS points were recorded by each device. For each trip, we calculated the percentage of points that fell within 1, 2.5, 5, and 10 m buffers, as well as the mean and median error. Results: Our results showed that 53.1% of all Holux and 45.1% of Qstarz GPS points fell within 2.5 m of the expected location, 90% (Holux) and 80% (Qstarz) fell within 10 m and the median error was 2.33 m and 3.15 m, respectively. Conclusions: The dynamic spatial accuracy of the tested Holux RCV-3000 was better than more expensive Qstarz device and can be considered as a valid instrument for assessing the spatial location of PA in future work.

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DO - 10.5507/ag.2019.009

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