Physical activity intensity can be accurately monitored by smartphone global positioning system 'app'.
In: European Journal of Sport Science, Jg. 16 (2016-08-01), Heft 5, S. 624-631
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Zugriff:
Monitoring physical activity is important to better individualise health and fitness benefits. This study assessed the concurrent validity of a smartphone global positioning system (GPS) 'app' and a sport-specific GPS device with a similar sampling rate, to measure physical activity components of speed and distance, compared to a higher sampling sport-specific GPS device. Thirty-eight (21 female, 17 male) participants, mean age of 24.68, s = 6.46 years, completed two 2.400 km trials around an all-weather athletics track wearing GPSports Pro TM (PRO), GPSports WiSpi TM (WISPI) and an iPhone TM with a Motion X GPS TM 'app' (MOTIONX). Statistical agreement, assessed using t-tests and Bland-Altman plots, indicated an (mean; 95% LOA) underestimation of 2% for average speed (0.126 km.h -1 ; -0.389 to 0.642; p < .001), 1.7% for maximal speed (0.442 km.h -1 ; -2.676 to 3.561; p = .018) and 1.9% for distance (0.045 km; -0.140 to 0.232; p < .001) by MOTIONX compared to that measured by PRO. In contrast, compared to PRO, WISPI overestimated average speed (0.232 km.h -1 ; -0.376 to 0.088; p < .001) and distance (0.083 km; -0.129 to -0.038; p < .001) by 3.5% whilst underestimating maximal speed by 2.5% (0.474 km.h -1 ; -1.152 to 2.099; p < .001). Despite the statistically significant difference, the MOTIONX measures intensity of physical activity, with a similar error as WISPI, to an acceptable level for population-based monitoring in unimpeded open-air environments. This presents a low-cost, minimal burden opportunity to remotely monitor physical activity participation to improve the prescription of exercise as medicine. [ABSTRACT FROM AUTHOR]
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Titel: |
Physical activity intensity can be accurately monitored by smartphone global positioning system 'app'.
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Autor/in / Beteiligte Person: | Gordon, Brett Ashley ; Bruce, Lyndell ; Benson, Amanda Clare |
Zeitschrift: | European Journal of Sport Science, Jg. 16 (2016-08-01), Heft 5, S. 624-631 |
Veröffentlichung: | 2016 |
Medientyp: | academicJournal |
ISSN: | 1746-1391 (print) |
DOI: | 10.1080/17461391.2015.1105299 |
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